Democrat Senate Races 2025. Data for fivethirtyeight's previous favorability, presidential approval and national 2025 republican primary averages is available for download here. There are 34 senate seats up for grabs, with about a half dozen of those likely to be decided.

Senate were held on november 5, 2025, and 34 of the 100 seats were up for election. 2025 senate election interactive map.