washington top democrat u.s. house representatives say friday congress promptly raise federal debt limit partly washington tax revenues appear slow expectations possible tax cut come warn house democratic leader nancy pelosi echo early remark treasury secretary steven mnuchin urge congress raise washington borrow limit lawmakers leave long august recess probably do leave end july pelosi tell reporters capitol many entities country think go get big tax break president trump next year revenues come fast year should president donald trump fellow republicans congress promise overhaul tax code include slash tax rat trump chief economic advisor gary cohn tell fox business news friday administration deliver tax plan congress august recess view promise like administration make months analysts speculate company wealthy americans may shift income 2018 expectation come tax cut may report nonpartisan congressional budget office say government tax receipt early 2017 percent low expect due smaller-than-anticipated payments individuals corporations cbo say could due part shift income late years hop take advantage future tax cut u.s. government periodically raise legal limit much money borrow cover budget deficit washington spend money take tax hike must approve congress decision recent years fraught political drama early march treasury department begin implement cash management measure stave hit exist debt limit efforts expect exhaust october november late data suggest could happen sooner 2011 unite state come close would historic default republicans withhold support debt limit increase order win deep budget cut quick debt limit move need tax receipt slow pelosi