WASHINGTON -- The battle for control of the Senate tightened Tuesday after Democrats picked up a seat in Colorado, but suffered a setback in Alabama, and Republicans held their own in high-profile races in South Carolina, Texas and Kansas, narrowing the political map.
Republicans fought to retain their Senate majority against a surge of Democrats challenging President Donald Trump's allies. Both parties saw paths to victory, but the Democrats' were narrowing. With several races still too early to call, and one Georgia contest heading to a January runoff, the final verdict might not be known on election night.
Democrats ousted Republican Cory Gardner for John Hickenlooper in Colorado, a must-win seat if Democrats were to wrest the majority. Gardner was among the most endangered incumbents as his state shifted leftward.
[Video not showing up above? Click here to watch » https://www.youtube.com/watch?v=_mYAUFcsNMI]
"It's time for a different approach," Hickenlooper said in an live video message posted on Facebook.
But several battlegrounds broke for Republicans, including an open seat in Kansas. Republican Roger Marshall prevailed over Democratic state Sen. Barbara Bollier, a former Republican, who energized Democrats in a state that hasn't elected a Democrat to the Senate since 1932.
From New England to the Deep South and the Midwest to the Mountain West, Republicans defended seats in states once considered long shots for Democrats.
Securing the Senate majority will be vital for the winner of the presidency. Senators confirm administration nominees, including the Cabinet, and can propel or stall the White House agenda. With Republicans now controlling the chamber, 53-47, three or four seats will determine party control, depending on who wins the presidency because the vice president can break a tie.
In Kentucky, Senate Majority Leader Mitch McConnell fended off Democrat Amy McGrath, a former fighter pilot in a costly campaign, but he acknowledged his GOP colleagues face tougher races.
"We don't know which party will control the Senate," McConnell said Tuesday night from Louisville, Ky. "But some things are certain already. We know grave challenges will remain before us, challenges that could not care less about our political polarization. We know our next president will need to unite the country, even as we all continue to bring different ideas and commitments to the table."
McConnell warned during his victory speech: "This is no time to declare war on our institutions because one side is angry that the framers made it hard to achieve radical change."
White House confidant Lindsey Graham survived the fight of his political life in South Carolina against Democrat Jamie Harrison, whose campaign stunned Washington by drawing more than $100 million in small-scale donations. In Texas, Sen. John Cornyn turned back Democrat MJ Hegar, a former Air Force helicopter pilot, in his hardest-fought election in almost two decades.
Republicans flipped the seat in Alabama that Democrat Doug Jones had won in a special election as former Auburn football coach Tommy Tuberville was elected in the Trump stronghold.
In Georgia, two Senate seats were being contested.
One already is headed to a Jan. 5 runoff after no candidate reached the 50% threshold to win. GOP Sen. Kelly Loeffler will face Democrat Raphael Warnock in a special election for the seat Loeffler was tapped to fill for retired Sen. Johnny Isakson.
In the other, GOP Sen. David Perdue, the former business executive Trump calls his favorite senator, tried to stave off Democrat Jon Ossoff, another candidate who has benefited from the "green wave" of campaign donations. It too, is expected to go to a runoff.
The Senate will welcome some newcomers as others retire. In Tennessee, Republican Bill Hagerty won the seat held by Sen. Lamar Alexander, who is retiring. Republican Cynthia Lummis, the former congresswoman from Wyoming, won the Senate seat opened by retiring GOP Sen. Mike Enzi.
So far, incumbent senators in less competitive races easily won.
Several Democrats were reelected, including No. 2 leader Dick Durbin of Illinois, Mark Warner in Virginia and Ed Markey, who survived a primary challenge in Massachusetts. Chris Coons kept the Delaware seat once held by Biden, defeating a Republican who previously promoted the QAnon conspiracy theory.
Among Republicans, Cindy Hyde-Smith in Mississippi, Tom Cotton in Arkansas, Ben Sasse in Nebraska, Shelley Moore Capito in West Virginia and James Inhofe in Oklahoma won.
In Washington to confirm Trump's Supreme Court nominee Amy Coney Barrett a week before Election Day, senators quickly fanned out -- some alongside the president -- for last-ditch tours, often socially distanced in the pandemic, to shore up votes.
Republican Sen. Thom Tillis joined Trump's rally in Fayetteville, N.C., on Monday. Tillis has struggled against Cunningham, despite the married challenger's sexting scandal with a public relations strategist. Cunningham traveled around the state Tuesday, talking to voters in Efland, near Durham.
In Arizona, Republican Martha McSally was trying to hold off Democrat Mark Kelly, a former astronaut.
[Gallery not loading above? Click here for more photos » arkansasonline.com/114senate/]
Democrats had more than one route to secure the three or four seats needed to capture the majority, and GOP strategists privately acknowledged that the incumbents will almost certainly suffer defeats in some races. But options were closing for Democrats.
In the presidential battleground of Michigan, Republicans have made an aggressive push for John James, a Black Republican businessman, against Democratic Sen. Gary Peters.
The Maine race between GOP Sen. Susan Collins and Democrat Sara Gideon was another contest that could push past Election Day if no candidate breaks the 50% threshold.
The political landscape is quickly changing from six years ago, when most of these senators last faced voters. It's a reminder of how sharply the political climate has shifted in the Trump era.
In Montana, Republican Sen. Steve Daines was trying to hold off Democrat Steve Bullock, the governor, in a state where Trump was popular.
[RELATED: Full coverage of elections in Arkansas » arkansasonline.com/elections/]
Iowa Sen. Joni Ernst was fighting for a second term against Democrat Theresa Greenfield.
And in Alaska, newcomer Al Gross, a doctor, broke state fundraising records in part with viral campaign ads as he took on GOP Sen. Dan Sullivan.
Information for this article was contributed by Lisa Mascaro and Mary Clare Jalonick of The Associated Press; and by Nicholas Fandos, Carl Hulse and Catie Edmondson of The New York Times.
