The Collins-Gideon race was the most expensive in Maine history, with national donors flooding the state with tens of millions of dollars and an onslaught of negative campaign ads. The battle for control of the Senate appeared to be heading out of reach for Democrats.
Democrats early Wednesday won a crucial seat in Arizona, with Mark Kelly, a former astronaut, defeating Senator Martha McSally, and former Gov. John Hickenlooper defeated Senator Cory Gardner on Tuesday night in the high-profile fight for Colorado’s Senate seat. Those victories were essential to Democrats’ push to take the Senate majority.
In Georgia, the Rev. Dr. Raphael G. Warnock, a Democrat, advanced to a runoff election against Senator Kelly Loeffler, the Republican incumbent. The other race in the state, between Jon Ossoff, the Democratic challenger, and Senator David Perdue, a Republican, was too close to call.
But Republicans across the country were successful in holding off well-funded challengers in a number of key races. In Montana, Senator Steve Daines defeated Gov. Steve Bullock and in Iowa, Senator Joni Ernst defeated Theresa Greenfield, a businesswoman who had styled herself as a “scrappy farm kid.” Senator Lindsey Graham, a Republican, hung onto his seat in South Carolina, fending off the toughest challenge of his political career from Jaime Harrison, a Black Democrat whose upstart campaign electrified progressives across the country and inspired a record-setting onslaught of campaign cash.
Senator John Cornyn, Republican of Texas, also defeated a challenge from M.J. Hegar, a former Air Force pilot who Democrats hoped could have an outside chance of winning in the rapidly changing state. In Kentucky, Senator Mitch McConnell, the majority leader, easily won re-election, defeating Amy McGrath, a Democrat who struggled to gain ground despite an outpouring of financial support from her party’s supporters around the nation.