State of the Fight for the US Senate as Voters Lock in Key Nominees

Despite a map that had been expected to be unfavorable for Democrats, polling has shown a surge for the party in recent months.

Maine residents cast their ballots at a polling station in Bangor, Maine, on June 9, 2026. CJ Gunther/Getty Images

As the U.S. primary season continues full steam ahead, some of the most critical 2026 Senate matchups have already been set. 

From the Southeast to New England and the Rust Belt, races are taking form that will determine the makeup of the Senate in 2027 and beyond.