United States Senate elections, 1790 and 1791

Dates vary by state

9 of the 26 seats in the United States Senate, plus special elections 14 seats needed for a majority

	Majority party	Minority party

Party	Pro-Administration	Anti-Administration
Last election	19 seats	7 seats
Seats before	18	6
Seats won	8	2
Seats after	17	8
Seat change	1
Seats up	7	2

Majority faction before election

Pro-Administration

Elected Majority faction

Pro-Administration

The United States Senate elections of 1790 and 1791 were the second series of elections of Senators in the United States. In these elections, terms were up for the nine Senators in Class 1. As of these elections, formal organized political parties had yet to form in the United States, but two political factions were present: The coalition of Senators who supported President George Washington's administration were known as the Pro-Administration Party, and the Senators against him as the Anti-Administration Party.

As these elections were prior to the Seventeenth Amendment to the United States Constitution, Senators were chosen by State legislatures.

Note: There were no political parties in this Congress. Members are informally grouped into factions of similar interest, based on an analysis of their voting record.

After the June 25, 1790 elections in Rhode Island.

In these elections, the winner was seated before March 4, 1791; ordered by election date.

In these general elections, the winner was seated March 4, 1791; ordered by state.

All of these elections involved the Class 1 seats.

In these elections, the winner was seated after March 4, 1791, the beginning of the next Congress.

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