Polls close in 15 more states
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.
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.
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.
ABC News projects that Republicans will flip three Democratic House seats in Florida alone, a big step toward netting the five seats needed to win the chamber.
Republican Anna Paulina Luna is projected to defeat Democrat Eric Lynn in the House seat that Democratic gubernatorial nominee Charlie Crist vacated. Crist is also projected to lose his challenge to Gov. Ron DeSantis, R.
Republican state Sen. Aaron Bean is projected to win over LaShonda Holloway in Florida's 4th Congressional District. Incumbent Rep. Al Lawson, D, moved districts after redistricting.
Republican Army veteran Cory Mills is also projected to emerge victorious in Florida's 7th Congressional District over Democrat Karen Green. The seat is currently held by retiring Rep. Stephanie Murphy, D.
"Florida has always been in our lifetimes the decisive swing state or at least one of a handful of decisive swing states, and now it's Florida, Florida, Florida, Republican, Republican, Republican," ABC News Chief Washington Correspondent Jonathan Karl said on ABC News Live.