As many as 11 key Senate races identified by CNN that are on the ballot in November will likely determine which party controls the chamber.
Democrats need 51 seats to win majority control of the Senate. Republicans need 50 seats because Vice President JD Vance has the power to cast a tie-breaking vote for the GOP.
Each party has multiple paths to Senate control. Use this interactive map to see how different hypothetical results would tip the balance. The key races, highlighted in yellow, are those most likely to be in play on Election Day. Other races in states with more predictable partisan outcomes are shaded by their current senator’s party.
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