Federalist John Sloss Hobart had been elected in January 1798 for the remainder of Philip Schuyler's term (1797–1803) but had resigned on April 16 after his appointment to the United States District Court for the District of New York. Federalist William North was appointed by Governor John Jay to fill the vacancy temporarily, and took his seat on May 21, Congress being in session until July 16, 1798. At the next meeting of the State Legislature, James Watson was elected instead of North, took his seat on December 11, 1798, but resigned on March 19, 1800, after his appointment as Naval Officer of the Port of New York.
At the State election in April 1799, Federalist majorities were elected to both houses of the 23rd New York State Legislature which met from January 28 to April 8, 1800, at Albany, New York.
Morris took his seat on May 3, 1800, being the fifth holder of this seat in a single term (1797–1803), a record which still stands after more than 200 years.
Sources
The New York Civil List compiled in 1858 (see: pg. 63 for U.S. Senators; pg. 117 for State Senators 1799–1800; page 173 for Members of Assembly 1799–1800)