At the beginning of each two-year congressional term, newly elected Members of the House of Representatives meet to organize and select their leaders. The Republicans call their internal House party organization the “Conference” while Democrats call their party organization the “Caucus.” Both parties hold organizational meetings where their Members elect their own leadership, adopt internal rules for how their party will operate, and draft their version of the institutional rules for the House.

In the Senate, Senators of each party meet as a party conference to elect the party and committee leaders as well as rank-and-file committee members from their respective parties. These party conferences meet periodically to discuss political strategy and review party positions on pending legislative business.

Below is a listing and description of congressional leadership offices for both the Republicans and Democrats in the House and Senate, as well as the individuals chosen by each party to fill these leadership positions.

The current Congress, the 117th, convened on January 3, 2021.