The State Legislature met from July 6 to 16, 1789, at the Old City Hall in Albany, to resume the election of U.S. Senators, and elected State Senator Philip Schuyler and Assemblyman Rufus King, both Federalists, who took their seats in the U.S. Senate of the 1st United States Congress a few days later at Federal Hall in New York City, where Congress met until September 29, 1789, and again from January 4, 1790.

The Legislature was to meet for the regular session on January 5, 1790, at the Old Royal Exchange in New York City; the State Senate assembled a quorum first on January 12, the Assembly on the next day; and both Houses adjourned on April 6.

State Senators Philip Schuyler, John Hathorn and John Laurance, and Assemblyman Rufus King retained their seats in the Legislature while serving concurrently in the 1st United States Congress.
Schuyler was also elected on January 15 a member of the State's Council of Appointment which consisted of the Governor of New York, and four State Senators elected annually by the State Assembly.
On January 27, the Legislature resolved that it was "incompatible with the U.S. Constitution for any person holding an office under the United States government at the same time to have a seat in the Legislature of this State," and that if a member of the State Legislature was elected or appointed to a federal office, the seat should be declared vacant upon acceptance.
Thus Schuyler, King, Hathorn, Laurance and federal judge James Duane vacated their seats in the State Legislature.
On April 3, John Cantine, a member of the Council of Appointment, raised the question if Schuyler, after vacating his State Senate seat, was still a member of the Council.
Philip Livingston, another member, held that once elected, a member could not be expelled from the Council in any case.
On April 5, Gov. George Clinton asked the State Assembly for a decision, but the latter refused to do so, arguing that it was a question of law, which could be pursued in the courts.
Schuyler thus kept his seat in the Council of Appointment until the end of the term.
The State Legislature met from July 6 to 16, 1789, at the Old City Hall in Albany, to resume the election of U.S. Senators, and elected State Senator Philip Schuyler and Assemblyman Rufus King, both Federalists, who took their seats in the U.S. Senate of the 1st United States Congress a few days later at Federal Hall in New York City, where Congress met until September 29, 1789, and again from January 4, 1790.
The Legislature was to meet for the regular session on January 5, 1790, at the Old Royal Exchange in New York City; the State Senate assembled a quorum first on January 12, the Assembly on the next day; and both Houses adjourned on April 6.
State Senators Philip Schuyler, John Hathorn and John Laurance, and Assemblyman Rufus King retained their seats in the Legislature while serving concurrently in the 1st United States Congress. Schuyler was also elected on January 15 a member of the State's Council of Appointment which consisted of the Governor of New York, and four State Senators elected annually by the State Assembly. On January 27, the Legislature resolved that it was "incompatible with the U.S. Constitution for any person holding an office under the United States government at the same time to have a seat in the Legislature of this State," and that if a member of the State Legislature was elected or appointed to a federal office, the seat should be declared vacant upon acceptance. Thus Schuyler, King, Hathorn, Laurance and federal judge James Duane vacated their seats in the State Legislature. On April 3, John Cantine, a member of the Council of Appointment, raised the question if Schuyler, after vacating his State Senate seat, was still a member of the Council. Philip Livingston, another member, held that once elected, a member could not be expelled from the Council in any case. On April 5, Gov. George Clinton asked the State Assembly for a decision, but the latter refused to do so, arguing that it was a question of law, which could be pursued in the courts. Schuyler thus kept his seat in the Council of Appointment until the end of the term.
13th New York State Legislature