Republicans have picked up Senate seats in Indiana, Missouri and North Dakota, and successfully defended one in Tennessee. In the House, Democrats flipped 41 seats.
The bottom line: Democrats have won control of the House and are waiting for more results in a few tight districts they hope to flip. Meanwhile, Republicans have secured control of the Senate, which stands at 53-47 after Mississippi Republican Sen. Cindy Hyde-Smith defeated Democratic challenger Mike Espy in an election runoff.
- Indiana: Republican Mike Braun has unseated Sen. Joe Donnelly in Indiana.
- North Dakota: Republican Rep. Kevin Cramer has defeated Democratic incumbent Sen. Heidi Heitkamp.
- Missouri: Republican Josh Hawley unseated Democrat incumbent Sen. Claire McCaskill.
- Florida: Republican Rick Scott defeated Democrat Bill Nelson.
- Nevada: Democrat Jacky Rosen beat Republican incumbent Dean Heller.
- Arizona: Democratic Rep. Kyrsten Sinema flipped Sen. Jeff Flake's (R) seat from red to blue.
- Virginia's 2nd: Democrat Elaine Luria beat out incumbent Republican Scott Taylor.
- Virginia's 7th: Democrat Abigail Spanberger beat incumbent Republican Dave Brat.
- Virginia's 10th: Democrat Jennifer Wexton unseated incumbent Republican Rep. Barbara Comstock.
- Florida's 26th: Democrat Debbie Mucarsel-Powell defeated Republican Rep. Carlos Curbelo.
- Florida's 27th: Democrat Donna Shalala defeated Republican Maria Elvira Salazar.
- New Jersey's 2nd: Democrat Jeff Van Drew defeated Republican Seth Grossman.
- New Jersey's 3rd: Democratic newcomer Andy Kim defeated incumbent Republican Rep. Tom MacArthur.
- New Jersey's 7th: Democrat Tom Malinowski ousted incumbent Republican Leonard Lance.
- New Jersey's 11th: Democrat Mikie Sherrill won the race for the open seat against Republican Jay Webber.
- New York's 11th: Max Rose defeated Republican Dan Donovan, the only Republican House member in New York City.
- New York's 22nd: Democrat Anthony Brindisi defeats GOP U.S. Rep. Claudia Tenney.
- New York's 19th: Democrat Antonio Delgado edges out incumbent Republican Rep. John Faso.
- Pennsylvania's 5th: Democrat Mary Gay Scanlon won against Republican Pearl Kim in the district which was reformed after the state’s gerrymandered map was redrawn.
- Pennsylvania's 6th: Democrat Chrissy Houlahan beat out Republican Greg McCauley for the open seat.
- Pennsylvania's 7th: Democrat Susan Wild defeated Republican Marty Nothstein for the open seat.
- Pennsylvania's 14: Republican Guy Reschenthaler defeated Democrat Bibiana Boerio.
- Minnesota's 2nd: Democrat Angie Craig unseated Republican incumbent Jason Lewis.
- Minnesota's 3rd: Dean Phillips defeated incumbent Republican Erik Paulsen.
- Kansas' 3rd: Democrat Sharice Davids defeated Republican incumbent Kevin Yoder.
- Colorado's 6th: Democrat Jason Crow unseated incumbent Republican Mike Coffman.
- Texas' 32nd: Democrat Colin Allred beat incumbent Republican Pete Sessions.
- Oklahoma's 5th: Democrat Kendra Horn defeated Republican Steve Russell.
- Arizona's 2nd: Democrat Ann Kirkpatrick topped Republican Lea Marquez Peterson.
- Iowa's 1st: Democrat Abby Finkenauer unseated Republican incumbent Rod Blum.
- Iowa's 3rd: Democrat Cindy Axne defeated incumbent Republican David Young.
- Illinois' 14th: Democrat Lauren Underwood unseated incumbent Republican Randy Hultgren.
- Illinois' 6: Democrat Sean Casten defeated incumbent Republican Rep. Peter Roskam.
- Georgia's 6th: Democrat Lucy McBath defeated Republican Rep. Karen Handel.
- Maine's 2nd: Democrat Jared Golden defeated Republican incumbent Rep. Bruce Poliquin.
- Pennsylvania's 17: Democrat Connor Lamb beat Rep. Keith Rothfus.
- South Carolina's 1st: Democrat Joe Cunningham defeated Rep. Katie Arrington.
- Michigan's 8th: Democrat Elissa Slotkin defeated incumbent Mike Bishop.
- Michigan's 11th: Democrat Haley Stevens defeated Republican Lena Epstein.
- Minnesota's 1st: Republican Jim Hagdorn defeated Democrat Dan Feehan.
- New Mexico's 2nd: Democrat Xochitl Torres Small defeated Republican Yvette Herrell.
- California's 10th: Democrat Josh Harder defeated Republican Jeff Denham.
- California's 25th: Democrat Katie Hill defeated Republican Rep. Steve Knight.
- California's 39th: Democrat Gil Cisneros defeated Republican Young Kim.
- California's 45th: Democrat Katie Porter beat incumbent Republican Mimi Walters.
- California's 49th: Democrat Mike Levin defeated Republican Diane Harkey.
- California's 48th: Democrat Harley Rouda defeated Republican Dana Rohrabacher.
- Washington's 8th: Democrat Kim Schrier defeated Republican Dino Rossi.
- Utah's 4th: Democrat Ben McAdams defeated Republican incumbent Rep. Mia Love.
Go deeper: Live map: 2018 midterm elections results
Editor's note: This is an updating story.