Catherine Cortez Masto’s victory in Nevada clinched the chamber for Democrats.
The 2022 midterm elections shaped up to be some of the most consequential in the nation's recent history, with control of Congress at stake.
All 435 seats in the House and 35 of 100 seats in the Senate were on the ballot, as well as several influential gubernatorial elections in battleground states like Arizona, Georgia, Pennsylvania and Wisconsin.
Democrats were defending their narrow majorities in both chambers and retained control of the Senate, though control of the House isn't yet clear. But a Republican flip of the lower chamber would be enough to curtail most of President Joe Biden's legislative agenda and would likely result in investigations against his administration and even his family.
Pennsylvania's Dr. Mehmet Oz called Democrat Lt. Gov. John Fetterman at 9:30 a.m. Wednesday to concede, according to a tweet from Fetterman’s communications director.
Oz "was nothing but class" and wished Fetterman "all the best," Fetterman spokesman Joe Calvello told ABC News.
Fetterman was projected to win Pennsylvania's Senate race, one of the most closely watched races in the nation.
Tudor Dixon, the Republican nominee for governor in Michigan, called Democrat incumbent Gov. Gretchen Whitmer on Wednesday morning to "concede and wish her well."
"Michigan’s future success rests not in elected officials or government, but all of us. It is incumbent upon all of us to help our children read, support law enforcement, and grow our economy,” Dixon said in a statement. "Thank you to our volunteers and supporters for working so hard to forge a better Michigan. We came up short, but we will never stop fighting for our families."
Whitmer, elected in the blue wave in 2018, cast herself as a crucial backstop for abortion access while Dixon said she opposes abortion access.
-ABC News’ Paulina Tam
Alaska: With 67% of the expected vote reporting, Republican challenger Kelly Tshibaka leads with 44% of the vote, followed by Republican incumbent Lisa Murkowski with 43%.
Arizona: With 67% of the expected vote reporting, Democratic incumbent Sen. Mark Kelly leads with 52% of the vote, followed by Republican challenger Blake Masters with 46%.
Georgia: With 96% of the expected vote reporting, incumbent Democratic Sen. Raphael Warnock and challenger Republican Herschel Walker are tied at 49% of the vote, meaning a runoff election is likely.
Wisconsin: With 94% of the expected vote reporting, Republican incumbent Sen. Ron Johnson leads with 51% of the vote, followed by Democratic challenger Lt. Gov Mandela Barnes with 49%.
Nevada: With 80% of the expected vote reporting, Republican challenger Adam Laxalt leads with 50% of the vote, followed by incumbent Sen. Catherine Cortez Masto with 47%.
-ABC News’ Oren Oppenheim
Wisconsin Democratic Gov. Tony Evers will win his campaign for reelection over Republican Tim Michels, ABC News projects.
Evers took to Twitter to react to the news: "Holy Mackerel, folks! I want to thank everyone who made this possible. Because of you, we have another four years to keep doing the right thing for Wisconsin."
Evers, Wisconsin's governor since 2018, had been in a tight race against Michels, a construction executive and former GOP candidate, according to FiveThirtyEight's polling average.
Those surveys showed the two candidates neck-and-neck heading into Election Day with Michels holding a slim 1-point advantage over Evers in the campaign's final stretch, though the two traded leads a few times since the late summer.
Read more here.
