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.
ABC News can project Republican incumbent John Boozman will win reelection to a third term in Arkansas. Boozman is projected to defeat Democrat Natalie James, a small business owner and community organizer. James was the first Black woman to win a major party nomination for Senate in Arkansas.
Polls have now closed in Arizona, Colorado, Iowa, Kansas, Louisiana, Michigan, Minnesota, Nebraska, New Mexico, New York, North Dakota, South Dakota, Texas, Wisconsin and Wyoming.
ABC News can project that Democratic U.S. Rep. Peter Welch will win against Republican challenger Gerald Malloy for Senate in Vermont.
Democratic activist Maxwell Frost will win his bid in Florida's 10th Congressional District and become the first Gen Z member of Congress, ABC News projects.
Frost, a progressive who defeated an establishment favored candidate in the primary, will defeat Republican Calvin Wimbish in the open seat vacated by Rep. Val Demings, the Democratic Senate nominee in Florida. Demings is projected to lose her challenge to Sen. Marco Rubio, R.
Frost turned 25 just this year and ran on policies like stricter gun legislation, "Medicare for All" and stronger action to combat climate change.
Karoline Leavitt, a Republican running in New Hampshire's 1st Congressional District, would join Frost as another Gen Z lawmaker if she wins her challenge to incumbent Rep. Chris Pappas, D.
