2025 Senate Forecast. Senate seats up for regular election in 2025—10 seats held by republicans, 19 held by democrats, and four held by independents who caucus with. The seats are listed in descending order from those most likely to go republican to those.

Track the races in arizona, nevada, montana, ohio, pennsylvania, west virginia, and more. Includes links to all 2025 senate polls and polling averages by state.