Sherrod Brown has wasted little time raising money since joining Ohio's U.S. Senate race on Monday. His campaign hauled in more than $3 million in its first 24 hours since he announced he would run.

The total includes $3 million raised by Brown’s campaign, and about $600,000 raised by the Democratic Senatorial Campaign Committee and the Ohio Democratic Party.

Former Ohio U.S. Sen. Sherrod Brown is back, officially announcing on Monday his long-anticipated campaign to reclaim a seat in Congress. Ohio Republicans are ready to fight. “I didn’t plan to run for office again,