1800–01 United States Senate elections

The 1800–01 United States Senate elections were held on various dates in various states, coinciding with Thomas Jefferson being elected to the White House. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1800 and 1801, and a seat may have been filled months late or remained vacant due to legislative deadlock. In these elections, terms were up for the senators in Class 3.

Although the Federalists began the 7th Congress with a slim majority, Jefferson's Democratic-Republican Party took over the majority shortly thereafter due to mid-year special elections. By the time the first proper session of the 7th Congress met in December 1801, three seats had been gained by the Democratic-Republicans, leaving them with an overall majority of 17 seats and a government trifecta.

Before the November elections
After the November 6, 1800 special election in New York.

Race summaries
Except if/when noted, the number following candidates is the whole number vote(s), not a percentage.

Special elections during the preceding Congress
In these special elections, the winner was seated before March 4, 1801; ordered by election date.

Races leading to the next Congress
In these regular elections, the winner was seated on March 4, 1801; ordered by state.

All of the elections involved the Class 3 seats.

Special elections during the next Congress
In these special elections, the winner was seated after March 4, 1801; ordered by election date.

Connecticut


Federalist Uriah Tracy was easily re-elected.

Maryland (special, 1800)
William Hindman won election over Richard Tilghman Earle by a margin of 10.11%, or 9 votes, for the Class 3 seat.

Maryland (regular)
The Maryland legislature failed to elect a senator before the March 4, 1801 beginning of the term. As such, William Hindman was appointed to fill the vacancy, and retired when a successor was elected.

Maryland (special, 1801)
Robert Wright won election over William Winder by a margin of 39.53%, or 34 votes, for the Class 3 seat.