The 2026 Senate Interactive Map is now available.
Republicans won control of the U.S. Senate by gaining four seats in the 2024 election. That gives the party 53 seats, although one will be vacant until January 13. Jim Justice is expected to be sworn in on that date after his term as Governor of West Virginia ends.
35 seats are up in 2026, 22 of which are held by Republicans. This includes special elections in Florida and Ohio. Sen. Marco Rubio (R) is expected to resign after being confirmed as Secretary of State, while J.D. Vance will become vice president on January 20. The governors of those two states will appoint interim replacements who will serve until the special elections.