The apportionment of seats in the House of Representatives was based on the provisions of Article I, Section 2, Clause 3 of the United States Constitution.

Members are informally grouped into factions of similar interest, based on an analysis of their voting record.

Senators were elected by the state legislatures every two years, with one-third beginning new six-year terms with each Congress.

Members are informally grouped into factions of similar interest, based on an analysis of their voting record.

There were three resignations, one contested election, and four new seats of admitted states, resulting in a four-seat net gain of the Anti-Administration Senators.

There were 3 resignations, 1 vacancy of a member-elect, 1 contested election, 2 late elections, and 4 new seats of admitted states, resulting in a 3-seat net gain of the Anti-Administration members and a 1-seat net gain of the Pro-Administration members.