Without control of the White House or Congress, the new DNC chair will lead the campaign arm of a Democratic Party that is still figuring out how to move on from rejection at the ballot box.

Democrats have elected Ken Martin, the party leader in Minnesota, to lead the national party. DNC chair candidate Ken Martin speaks at the Democratic National Committee Winter Meeting at the Gaylord National Resort and Convention Center in National Harbor, Md., Saturday, Feb. 1, 2025. (AP Photo/Rod Lamkey, Jr.)

The Democratic National Committee chose Mr. Martin, the leader of the Minnesota Democrats, to help oversee a demoralized national party split over its future and its response to President Trump.