Who is the current Senate majority leader?
John Thune – Republican South Dakota Serving in the 119th Congress
John Randolph Thune is an American politician serving as the senior US senator from South Dakota, since 2005.
A member of the Republican Party, he has been the Senate majority leader and Senate Republican leader since 2025.
The Roles of Minority leaders in Congress
With each new Congress, the Democratic and Republican Conferences elect one of their members to serve as party leader. Depending on which party is in power, one party leader serves as majority leader and the other as minority leader. Both party leaders, also called floor leaders, serve as the spokesperson for their party’s positions on the issues and coordinate their respective legislative strategies.
The position of party floor leader is not included in the Constitution. It evolved gradually in the late 19th and early 20th centuries.