Brown, 72, is viewed as one of Democrats' most formidable Senate candidates in next year's midterms, as they try to take control of the chamber in the face of a daunting map.
Breakdown
- Sherrod Brown announces his run for the U.S. Senate in Ohio. 4s
- Brown is aiming to win the seat currently held by Republican John Houston. 8s
- The special election will fill the last two years of J.D. Vance's Senate term. 17s
- J.D. Vance left the Senate to become vice president. 21s
- Governor Mike DeWine appointed Houston to the seat until the special election. 25s