Mr. Justice Day,
after making the foregoing statement, delivered the opinion of the court.
The so-called Hewitt law, set forth in the foregoing statement, has given rise to much litigation in the courts of Kentucky, as well as in those of the United States. At one time .it was held by the Court of Appeals of Kentucky that its provisions, when complied with by the bank seeking to avail itself of its privileges, constituted a valid and binding contract. Commonwealth, to use of Franklin Co. v. Farmers' Bank of Kentucky et al., 97 Kentucky, 590. In a later case the Court of Appeals of Kentucky held the law not to constitute an inviolable contract. Deposit Bank of Owensboro v. Daviess Co., 102 Kentucky, 174. When the law was before this court, the same conclusion was reached. Citizens' Savings Bank of Owensboro v. Owensboro, 173 U. S. 636.
It may be now regarded as the settled law that this enactment did not constitute a contract between the State, and the banks as to taxation, but is subject to modification and repeal by subsequent laws of the State undertaking to tax bank property.
In this case we have to deal with the effect of a decree of the Circuit Court of the United States which is unreversed and affirmed in this court, and in which, between the parties to the present action, it was held that the Hewitt law was a valid enactment and constituted a contract between the parties within the protection of-the-contract clause of the Constitution of the United States. A proper consideration of the question requires that it shall be distinctly understood just what this decree is. The bill which was the basis of the action of the court was broad in its terms, and sought not only to enjoin the collection of'the taxes for the years 1895, 1896, 1897, 1898, which were.involved, but to have it .finally adjudicated that' the Hewitt law constituted a contract between the parties which shielded the bank from taxation after complying with the provisions of that law. The decree not only provided for a perpetual injunction enjoining the taxation for the years specifically mentioned, but further:
"It is further adjudged, ordered and decreed that by reason of the several pleas of res judicata, relied on by the complainant in its bill and as shown by the exhibits therewith, the complainant has established a contract with the Commonwealth of Kentucky under the provisions of . article 2 of the act of the general assembly of the State of Kentucky, entitled 'An act to amend the revenue laws of the Commonwealth of Kentucky,' approved May 17, 1886, and the acceptance of the same by the complainant, the terms of which contract the Cpmmonwealth cannot alter or change without the consent of the complainant; that by the terms of this contract the complainant and its shares of stock cannot, during its corporate existence, be assessed for taxation for state purposes in a different mode or at a greater' rate of taxation than as prescribed in said act, and can be assessed for taxation and taxed for county and municipal purposes only, upon its real estate used by it in conducting its business; that the provisions of the present constitution of the Commonwealth of Kentucky and the act of November 11, 1892, in so far as they are intended to provide or do provide for any assessment or taxation of the complainant's property, rights of property, or franchise, or shares of stock, except to the extent and in the manner provided by sections 1, 2 and 3 of article 2 of the said act approved May 17, 1886, and except to assess; and tax for eounty and municipal purposes upon its real estate used_in conducting its business, are in violation of and repugnant to the Federal Constitution and void."
The constitution of the Commonwealth of Kentucky, adopted after the passage of the Hewitt law, made provision for the enactment of laws for the taxation of the property of banks. Passed under the authority of these constitutional provisions, the act of November 11, 1892, referred to in the decree of the Federal Circuit Court of 1898, is the legislation subsequent to the Hewitt law under which it is sought to assess and collect taxes involved in the present suit. If this decree is to-be given force and effect, as having adjudicated the Hewitt law to be a binding contract covering the right to tax the bank, there can be no question that this subsequent legislation is violative of the constitutional inhibition.against the States from enacting laws impairing the obligation of contracts- This legislation is in absolute conflict with the Hewitt law. Citizens' Savings Bank of Owensboro v. Owensboro, 173 U. S. 636. The decree declares in ternas, as direct and specific as it is possible to make them, that the act now sought to be enforced in the assessment and collection of taxes is in violation of the Federal Constitution, and therefore void.
The judgment of the state court upon which the decree of the Federal court is predicated was equally broad in its terms, and covered not only the particular years of assessment- then in question but the broader right of the parties to be protected under the Federal Constitution against state enactments in violation of the contract provision of that instrument. •
It is urged that the state judgment upon which the Federal decree of 1898 is based was afterward reversed by the highest court of Kentucky, and, therefore, the foundation of the decree has been removed and the decree itself must fall. But is this argument sound? When a plea of res judicata is interposed based upon a former judgment between the parties, the question is not what were the reasons upon which the judgment proceeded, but what was the judgment itself, was it within the jurisdiction of the court, between the same parties, and is it still in force and effect? The doctrine of estoppel by judgment • is founded upon the proposition that all: controversies and contentions involved are set at rest by a judgment or decree lawfully rendered which in its terms embodied a settlement of the rights of the parties. It would undermine" the foundation of •the-principle upon which'it is based if the court might inquire into and revise the reasons which léd the court to make the judgment. In such case, nothing would be set at rest by the decree; but the matter supposed to be finally adjudicated, and concerning which the parties had had their day in court, could be reopened and examined, and if the reasons stated were in the judgment of the court before which the estoppel is pleaded insufficient, a new judgment could be rendered because of these divergent views and the whole matter would be at large. In other words, nothing would be settled, and the judgment, unreversed, instead of having the effect of forever settling the rights of the parties, would be but an idle ceremony. We are unable to find reason or authority supporting the proposition that because a judgment may have, been given for wrong reasons or has been subsequently reversed, that it is any the less effective as an estoppel between the parties while in force. In Crescent City Live Stock Co. v. Butchers Union Slaughter House Co., 120 U. S. 141, the question of what effect should be given to a decision of a court of the United States as proof of probable cause in a suit for a prosecution which was alleged to be malicious was before the court. It appeared that the judgment relied upon had been subsequently reversed, and it was held that this made'no difference unless it was shown that the judgment was obtained by means of fraud. Mr. Justice Matthews, delivering the opinion of the court, said:
"Its integrity, its validity, and its effect are complete in all respects between all parties in every suit and in every forum where it is legitimately produced as the foundation of an action, or of a defence, either by plea or in proof, as it would be in any, other circumstances. While it remains in force it determines the rights of the parties between themselves, and may be carried into execution in.due course of law to its full extent, furnishing a complete protection to all who act in compliance with its mandate, and even after reversal it still remains, as in the case of every other judgment or decree in like circumstances, sufficient evidence in favor of the plaintiff who instituted the suit or.action in which it is rendered, when sued for a malicious prosecution,' that he had probable cause for his proceeding."
. The precise question was before the Court of Appeals of New York in Parkhurst v. Berdell, 110 N. Y. 386, in which case a judgment was relied upon as an estoppel in a suit between the same parties. The first siiit settled certain matters in controversy in the second suit, and was given force and effect as an estoppel, but was afterward reversed by the appellate eourt. The second suit, in which it was relied upon, came before the Court of Appeals, and it was claimed that the reversal of the judgment in the first suit would avoid its force as an estoppel between the parties. The court said (p.392):
" If the judgment roll was competent evidence when received, its reception was not rendered erroneous by the subsequent reversal of the judgment. Notwithstanding its reversal, it continued in this action to have the same effect to which it was entitled when received in evidence. The only relief a party against whom a judgment which has been subsequently reversed has thus been-received in evidence can have, is to move on that fact in the court of original jurisdiction for a new trial and then the court can, in the exercise of its discretion, grant or refuse a new trial, as justice may require."
It is to be remembered that we aTe not dealing with the right of the parties to get relief from the original judgment by bill of review or other process in the Federal court in which it was rendered. There the court may reconsider and set aside or modify its judgment upon seasonable application. In every other forum the reasonsjfor p¿ssing the decree are wholly immaterial and the subsequent reversal of the judgment upon which it is predicated can have no other effect than to authorize the party aggrieved to move in some proper proceeding, in the court of its rendition, to modify it or set it aside. It cannot be attacked collaterally, and in every other court must be given full force and efféct, irrespective of the reasons upon which it is based. . Cooley on Const. Limitations, 7th ed. 83 et seq., and cases cited.
Again, it is urged thát the taxes herein involved are those for different years than were under consideration and covered by the decree of the Federal court relied upon. The vice of this argument consists in assuming that the taxes for specific years were alone involved and covered by the decree of the court. The controversy was -as to the force and effect of the Hewitt law as a contract; not for one year but for all years; not for one assessment, but for all assessments of taxes upon certain property of the bank. • The contest was over the contract, and the consequent want of power to collect any and all taxes the assessment of which did violence to the contract rights of the bank. The. court had jurisdiction of the parties and of the subject matter of the suit, and it was adjudicated that there was a contract which was entitled to protection against impairment by state legislation within the right guaranteed by the Federal Constitution. This adjudication necessarily included not only the taxes for specific years, but foreclosed the right to collect any taxes concerning which the contract afforded immunity to the bank. That a bank charter and laws having the effect of~bank charters may constitute valid and binding contracts conclusive between the parties, is now so well settled by the adjudications of this court as not to be open to discussion. New Orleans v. Citizens Bank, 167 U. S. 371. In that case it was held that a judgment of the District Court of New Orleans, holding the charter of a bank to constitute a binding and conclusive contract between the parties, although involving the taxes of other years than those in suit, was res judicata and conclusive between the parties. In the course of the opinion, Mr. Justice White said:
"The proposition that because a suit for a tax of one year is a different demand from the suit for a tax for another, therefore res judicata cannot apply, whilst admitting in form the principle of the thing adjudged, in reality substantially denies and destroys it. The estoppel resulting from the thing adjudged does not depend upon whether there is the same demand in both cases, but exists, even though there be different demands, when the question upon which the recovery of the second demand depends has under identical circumstances and conditions been previously concluded by a judgment between the parties or their privies. This is the elemental- rule, stated in the text books and enforced by many decision? of this court, , . ,
"It follows, then, that the mere fact that the demand in this case is for a tax for one year, and the demands in the adjudged cases were for taxes for other- years, does not prevent' the operation of the thing adjudged, if, in the prior cases, the question of exemption was necessarily presented and determined upon identically the same facts' upon which the right of exemption is now claimed." .
This case is cited with approval in Southern Pacific R. R. Co. v. United States, 168 U. S. 1, in which the decisions of this court upon the subject of res- judicata are reviewed- by Mr. Justice Harlan and the general doctrine thus stated:
"A right, question or fact distinctly put in issue and directly determined by a court of competent jurisdiction, as a ground of recovery, cannot be disputed in a subsequent suit between the same parties or their -privies; and even if the second suit is for a different cause of action, the right, question or fact, once so determined must,- as between the same parties or their privies, be taken as conclusively established, so long as the judgment in the first suit remains unmodified." -
The thing established by the Federal decree relied upon here was the binding and conclusive character of the contract embodied in the Hewitt law and its acceptance. That it was such a contract was then adjudicated, and, irrespective of the reasons given for the decision, must remain concluded until the judgment constituting such adjudication is modified or reversed.
But it is said that the question here is simply, what force and effect the state court should give to the decree of the Federal court relied upon. It is argued that there should be given to a Federal judgment the same force and effect that the state court gives to a judgment of a court of the State, in which the Federal judgment is relied upon, neither more nór less. Cases are cited from the Kentucky Court of Appeals which may be said to establish that an adjudication concerning taxes for one year cannot be pleaded as an estoppel in suits in that State involving the taxes of other years. It is true that for some purposes and within certain limits it is only required -that the judgments of the courts of the United States shall be given- the. same force and effect as are given the judgments of the courts of the States wherein they are rendered; but it is equally true that whether ' a Féderal judgment has been given due force and effect in the state court is a Federal question reviewable by this court, which will determine for itself whether such judgment has been given due weight or otherwise. Crescent City Live Stock Co. v. Butchers' Union Slaughter Co., supra; Pittsburgh R. R. Co. v. Loan & Trust Co., 172 U. S. 493. In the latter case, Mr. Justice Harlan, after reviewing the cases upon this subject, thus states his conclusion:
"According to these decisions and in view of the statute giving this court authority to reexamine the final judgment of the highest court of a State denying a right specially set up or claimed under an authority exercised under the United States, it is clear that we have jurisdiction to inquire whether due effect was accorded to the foreclosure proceedings in the Cir- cuit Courts of the United States under which the plaintiff in error claims title to the lands and property in question."
When is the state court obliged to give to Federal judgments only the force and effect it gives to state court judgments within its own jurisdiction? Such cases are distinctly pointed out in the opinion of Mr. Justice Bradley in Dupasseur v. Rochereau, 21 Wall. 130, where the learned justice says:
"The only effect that can be justly claimed for the judgment in the Circuit Court of the United States, is such as would belong to judgments of the state courts rendered under similar circumstances. Dupasseur and Co. were citizens of France, and brought the suit in the Circuit Court of the United States as such citizens; and, consequently,- that court, deriving its jurisdiction solely from the citizenship of the parties, was in the exercise of jurisdiction to administer the laws of the State, and its proceedings were had in accordance with the forms and course of proceeding in the state courts.' It is apparent, therefore, that no higher sanctity or effect can be claimed for the judgment of the Circuit Court of the United States rendered in such a ease under such circumstances than is due to the judgments of the state courts in .a like case and under similar circumstances." -
The cases which, by clear inference, cannot come within this class are to be noticed.
When it was said that no higher sanctity or effect can be given to a judgment of the Circuit Court of the United States than to state judgments, the learned judge is careful to say "in like case under similar circumstances." What are these cases? Manifestly those just stated, wherein the court derives its jurisdiction from the citizenship of the parties and in the exercise of the jurisdiction to administer the laws of the State where the proceedings are had. Where language has been used in other- cases to the effect that judgments of the Federal courts are to be given the effect given to domestic judgments, they will be found to be cases where questions of general law are under consideration, and coming within the class suggested by Justice Bradley in the opinion quoted. Such is the case of Crescent City Live Stock Co. v. Butchers' Union Slaughter House Co., 120 U. S. 141. It was there held that a judgment of the United States "court, relied upon as a ground of probable cause in a suit for malicious prosecution, was to be given the same force and effect as judgments in the state courts. But Mr. Justice Matthews, delivering the opinion, was careful to add: .
"Whatever deference may be' due to the decisions of the state.court of final resort in every case in which it has spoken, and whatever may bé the respect to which its decisions upon questions of purely local law established as rules of property may be entitled, they are not authority binding upon the courts of the United States, sitting even in the same State, where the questions involved and decided relate to rights arising under the Constitution andTaws of the United States."
In Embry v. Palmer, 107 U. S. 3, it was held that the Supreme Court of the District of Columbia is.a court of the United States and its judgments conclusive in the courts of a State except for such cause as would be sufficient to set it aside in the courts of the District.
Mr. Justice Matthews, who delivered the opinion, again stated the doctrine that the judgments of the courts of the United States are upon the same footing so far as concerns the obligation created by them with judgments of the States. Other cases are found in the reports stating the general proposition.
In Union & Planters' Bank v. Memphis, 189 U. S. 71, the question was as to the effect to be given to a state judgment as res judicata. It was held that the Federal ccjurts were not required to give such domestic judgments any greater force and effect than was awarded them by the courts of the State where rendered.
But it is equally well settled that a right claimed under the Federal Constitution, finally adjudicated in the Federal courts, can never be taken away or impaired by state decisions. The same reasoning which permits to the States the right of final-adjudication upon purely state questions requires no less respect for the final decisions of the Federal courts of questions of national authority and jurisdiction.
This principle is now so thoroughly settled as to need but to be stated. It has been reiterated in a line of decisions following the great judgment of Chief Justice Marshall in Cohens v. Virginia, 6 Wheat. 264, in which the principle was firmly i established. As early as Ohio Life Insurance & Trust Co. v. Debolt, 16 How. 416, 432, Chief Justice Taney said:
"Indeed, the duty imposed upon this court to enforce contracts honestly and legally made, would be vain and nugatory, if we were bound to follow those changes in judicial decisions which the lapse of'time and the change in judicial officers will often produce. The writ of error to a state court would be no protection to a contract, if we were boqnd to follow the judgment which the state Court had given, and which the writ of error brings up for revision here." McCullough v. Virginia, 172 U. S. 102; Jefferson Branch Bank v. Skelly, 1 Black, 436; Douglas v. Kentucky, 168 U. S. 488, 501, and cases cited.
- In the last named case, Mr. Justice Harlan, delivering the opinion, deals with the question as follows:
"The defendant insists that his rights having been acquired when these decisions of the highest court of Kentucky were in full force, should b'e protected according to the law of the State as it was adjudged to be when those rights attached. But. is this court required to accept the principles announced by the state court as to the extent to which the contract clause of the Federal Constitution restricts the powers of the state legislatures? Clearly not. The defendant invokes the jurisdiction of this court upon the ground, that the rights denied to him by. the final judgment of the highest court of Kentucky, and which the state seeks to prevent him from exercising; were acquired under an agreement that constituted. a contract within the meaning of the Federal Constitution. This contention is dis-' puted by the State. So that the issue presented- makes it necessary to enquire whether that which the defendant asserts to be a contractivas a contract of the class to which the Constitution of the United States refers. - This court mus. determine — indeed, it cannot consistently with its duty refuse to determine — upon its own responsibility, in each case as it arises, whether that which a party seeks to have protected under the contract clause of the Constitution of the United States is a contract the obligation of which is protected by that instrument against hostile state legislation." ' Mobile & Ohio Railroad v. Tennessee, 153 U. S. 486; Knox County v. Ninth National Bank, 1-Í7 U. S. 91; McGahey v. Virginia, 135 U. S. 662.
These cabes thoroughly established the proposition that in no other way can the obligation of the Federal courts under the Constitution be discharged than by rigidly adhering to the right and duty to maintain the ultimate right of the Federal courts to protect the citizens of the United States, and of every State, in the enjoyment of'rights and privileges guaranteed by the Federal Constitution.
We suppose there is no question that if the state court had refused to give effect to the' Hewitt law as a binding contract, and that question were presented here upon writ of- error, and this court reached a different conclusion, holding the Hewitt law to constitute a contract, the judgment of the state court would be reversed for the denial of the right claimed under the federal Constitution. In the present case we are asked to go further and sustain the judgment of the state court in the face of a judgment of a Federal Circuit Court, affirmed in this court,' and duly invoked for the protection of the party in whose favor it was rendered in an action between the same parties. In Des Moines Navigation & Railroad Co. v. Iowa Homestead Co., 123 U. S. 552, a suit was brought in an Iowa court by the Homestead Company to recover taxes for the years. 1864 to' 1871. The right to recover the same taxes had been litigated between the same parties and decided adversely to the Homestead Company in the case of Homestead Co. v. Valley R. R., 17 Wall. 153. The railroad company set up the decree in its favor as a bar to the action. The Homestead Company replied: "That the decree or judgment referred to'is null and void, for the reason that the courts of the United States had no jurisdiction of said suit, and no legal power or authority to render said decree or judgment.", The Supreme Court of Iowa held that the question of prior adjudication had not been properly raised before it, and decided the case without considering the point. " This court held that the point was duly made and that the Federal court had jurisdictibn in the suit relied upon, and decided in 17 Wallace; and held further that the Supreme Court of Iowa, in refusing to give effect-to the prior judgment as an estoppel, had denied to the Navigation Company the Federal right set up. In delivering the opinion, Mr. Chief Justice Waite said:. •
"As the Circuit Court entertained the suit, and this court, on appeal, impliedly recognized its right to do so, and proceeded to dispose of the case finally on its merits, certainly our decree cannot, in the light of prior adjudications on the same general question, be deemed-a nullity. It was, at the time of the trial in the present, case in the court below,'a valid and. subr sisting prior adjudication of the matters in controversy, binding on1 these parties, and a bar to this action. In refusing so to decide, the court failed to give full faith and credit to the decree of this court under which the Navigation and Railroad Company claimed an immunity'from all'liability to the Homestead Company on account of the taxes sued for, and this was error."
- This reasoning is applicable here.'' The decree of the Federal court of 1898 gave judgment that.the'banlc had a contractab-solving it from all taxes, -including those sued for. When the .state court refused to 'give that judgment effect it denied a right secured by the Federal' court judgment upon matters wherein its. decision was final -until reversed in an appellate court, or modified or set aside in the court of its rendition.
In our judgment the adjudication of the Federal court relied upon here, although based upon the judgment of a state court' given as a reason therefor, is equally effectual as it would have .been had the Federal .court reached the conclusion, as upon the -original question, .that the Hewitt law constituted a binding contract between the parties. Any other conclusion strikes down the very foundation of - the doctrine of res judicata, and permits the state court to deprive a. party of the benefit of its most important principle, and is a virtual abandonment of the final power of the Federal courts to protect all who come before them relying upon rights guaranteed by the Federal Constitution and established by the judgments of the Federal courts.
It is true that the final determination of the courts that the Hewitt' law did not'constitute a contract, and the reversal'of the state court judgment which was the basis of the decree in the Federal court, renders this case one where a court might' •wish-to avoid the application of rules which may seem techni,'cal. But the protection of the right of parties as'wéll as the, interest of the public to end litigation by a final judgment, and to .preserve inviolate the safeguards of the Federal Constitution,, should never be overlooked in view of the hardship of particular cases. And we repeat fhat we are not dealing with any right of relief which the State may .have in the Federal court wherein the original decree was rendered.
Judgment reversed and cause remanded.
Mr. Chief Justice Fuller, with whom concurred Mr. Justice Brewer, Mr. Justice Brown and Mr. Justice Peckham, dissenting:
This was a petition in equity hied by defendant in error in the Circuit Court of Franklin County, Kentucky, seeking the recovery of certain taxes for the years 1893 and 1894,- penalties and interest. To revise the judgment of the Court of Appeals of Kentucky rendered November 19, 1901; this writ of error was sued out, and the question is whether that court erred in declining to direct the Franklin Circuit Court to sustain a plea of former adjudication by the decree of the Circuit Court of the United States rendered June 25, 1898, in enforcement of a-decree of the Franklin Circuit Court rendered in the same case February 1, 1896, and which was reversed by the state Court of Appeals, June 19, 1900.
The plea or supplemental answer was filed in the Franklin Circuit Court, February 1, 1901, on the remanding of the case to that court. The case went off on other points, but, being again carried to the Court of Appeals, it was held that as the taxes involved in this case were those for 1893 and 1894, and those involved in the case in the United States court were the taxes for 1895, 1896, 1897 and 1898, and as it was the settled law of Kentucky that an adjudication in respect of the taxes of one year was not a bar to recovery in litigation in respect of the taxes' of another year, the decree of the United States Circuit Court,, based on the reversed decree in this, case, could not be-treated as a bar to the collection of the taxes for 1893 and 1894, on the view that the thing adjudged was the existence of a contract created by the Hewitt law, which exempted the banks from liability for such taxes during the lifetime of. their charters; and that to decide otherwise would be to hold that the prior decree in this case, though reversed, was nevertheless made binding by the decree of another jurisdiction rested upon it, as having determined the invalidity of taxes of other years, notwithstanding the law of the State to the contrary.
And the Court of Appeals was fortified in its conclusion by the fact that the Supreme Court of the United States, the Court of Appeals, and the Circuit Court of the United States in opinions delivered at the time of the rendition of the decree in question, had all held that the Hewitt law did not constitute an irrevocable contract. -
The case before us stands in the same situation as if the Franklin Circuit Court had overruled the plea of former adjudication and rendered decree for complainant, and the Court of Appeals had thereupon affirmed that decree; and it seems to me that the Franklin Circuit Court could not have done otherwise in view of the law of the State in respect of litigation as to taxes of different yeárs.
Moreover there,is a distinction between estoppel by decree and estoppel'by the findings on which the decree rests, in that the. one operates as a bar to subsequent suits on the same cause of action, and the other to further litigation of the particular issuable facts found.
' And I submit that the thing adjudged by the Circuit Court of the United States was not that the Hewitt law Constituted a contract between the State and the banks, which exempted the banks from this taxation, but was that the Board of Councilmen was estopped to deny the .alleged contract because of the decree of the Franklin Circuit Court. This is explicitly stated in the decree as the groünd of the decree,- and the decree could have rested on no other.ground, as the suit was in effect a suit to enforce, the state court deéree, and, conceding the potency attributed to the.doctrine of res judicata, the Circuit Court of the United States eould not have exercised an original judgment on the question • of contract of not, but was com pelled to accept the existence of the contract as "established" by the decree of the Franklin Circuit Court.
I think it follows that when .a decree rests on the estabhsh- . ment by a prior decree of a certain conclusion of law, such ground of the prior decree cannot be treated as merely reasons for the later decree, which as mere reasons may be ignored; and that this must necessarily be so when the. court rendering the later decree is shut up to the single question of estoppel. This being so, I differ entirely from the view that the controversy in the Federal court was at large as.to the force and effect of the Hewitt law as a contract exempting the banks from taxation not' 'only for the.specified years but for all other years. The decree cannot be treated as giving to the Franklin Circuit decree a wider scope than the law of the State allowed, and the law of the- State was that the doctrine of res judicata is not applicable to taxes for years-other than those under consideration in the 'particular case. See Union &c. Bank v. Memphis, 189 U. S. 71, 75, and cases cited.
' It is true that the decree of the United States Circuit Court enjoined the taxes involved in that suit, and also the taxes for subsequent years, but this was upon the express ground, that the decree of the state Circuit Court had established-a contract of exemption during the corporate existence of the bank;,and whatever the terms of the latter decree, the state law p&mitt'ed a renewal óf the controversy in respect of taxes..not'directly' involved. To apply' the- Federal decree to any other than the taxes enumerated is to hold that matters of. public law can fee-placed by estoppel beyond the power of reconsideration, a doctrine, not heretofore favored by this court.< Boyd v. Alabama, 94 U. S. 645; Brownsville v. Loague, 129 U. S. 493; O'Brien v. Wheelock, 184 U. S. 450. ' ¡
It is the duty of the state courts as well as of the Federal courts to see to it that no act of a state legislature impairing the obligation of a contract is sustained, and it is the duty of the Federal courts as well as of the state courts to see'-to it that.no act of a state legislature is avoided on the pretext, of impair ment of the obligations of a- contract, when in fact there is no contract to impair. Here this court and the highest court of the state of Kentucky agree that there is no contract, and yet a valid' law of Kentucky is overthrown on the pretence of a contract which confessedly has no existence. The reason given is that the Federal court once held that there was a contract1 when in truth that court held that there was no contract, but that defendant in error was estopped to assert that fact by reason of ~a judgment of the state court, which has since been duly vacated. The decision is, therefore, not based upon any provision of the Federal Constitution, but upon a rule of general law as to the conclusiveness of a judgment. But that rule of general law is, like any. other, subject to modification or change, by the State, and it is as true of Kentucky as of Tennessee that the rule of res judicata as applied to taxes does not embrace other taxes than those immediately in litigation. Repeated decisions of this court are that a Federal judgment is entitled to the same consideration as a state judgment, "no more and no less," and we held in Union Bank. v. Memphis that what effect a judgment of a state court shall have as res judicata is •a question of staté law.
In my judgment the state courts in rendering decree for the taxes of 1893 and 1894 did not refuse to give the Federal decree such effect as it was entitled to.
Of course, I express no opinion as to the taxes for 1895,1896, 1897 and 1898, the immediate subject of the bill in the United States court. The situation of that case is peculiar. The decree of that court was affirmed in this court on appeal by an equal division, May 15, 1899. 174 U. S. 80Ó. Leave was subsequently granted by this court to appellants to.apply to the Circuit Court for leave to file such bill 'as counsel might be advised. The present defendant in error (appellant there) accordingly applied to that court fbr leave to file a bill of review, which was denied./' 120 Fed. Rep. 165. The case Was then carried to the Circuit Court of Appeals for the Sixth Circuit, and that court affirmed the order of the Circuit Court; 124 Fed. Rep. 18. The' eourt stated.that the judgment of the Franklin Circuit Court rested on a former decision of the Court of Appeals of Kentucky holding the revenue act of 1892 void as'an impairment of the. state's' contract with the banks, and that, after the decree of the United States Circuit Court; the Court of Appeals of Kentucky overruled its former decision; and the United States Court of Appeals then held .that the ' consequent reversal of the Franklin Circuit judgment furnished no adequate ground for the revision of the decree of the United States Circuit Court.'
The prior decision of the Court'of Appeals of . Kentucky was rendered June 1, 1895, and is reported 97'- Kentucky, 590. .Thai;' decision was ovérruled by a decision rendered March 24, 1897, and reported 19 KyrL. Rep. 248. The'decree of the. Circuit Court of the United States was rendered June 25, 1898. Theré were many cases under consideration in the state Court of Appeals, and it happened that the decree of the Franklin Circuit Court was not in fact reversed until June 19,1900. But . as the ground on which that decree rested had been swept away in- 1897, the- Circuit Court of the United States might well'have applied the rule laid down by Lord' Redesdale, that where a party comes into a court of equity to have the benefit of a former decree, the court is at.liberty to inquire whether the circumstances justified the relief. Mitf. PI. 96; 138 U. S. '552, 561. This was not done, and the Federal decree has hot, as yet, been set aside.
' But Lord Redesdale's rule is applicable in this casé,- and that is in itself sufficient to require the affirmance of the judgment of the Court of Appeals of Kentucky.
My Brothers Brewer, Brown and Peckham concur in this dissent.