The 2018 United States Senate election in Minnesota took place on November 6, 2018, to elect a United States Senator from Minnesota. Incumbent Democratic–Farmer–Labor U.S. Senator Amy Klobuchar was reelected in a landslide, defeating Republican state House of Representatives member Jim Newberger. This election was held alongside a special election for Minnesota's other Senate seat, which was held by Al Franken until he resigned in January 2018. U.S. House elections, a gubernatorial election, State House elections, and other elections were also held.
The candidate filing deadline was June 5, 2018, and the primary election was held on August 14, 2018.
Democratic-Farmer-Labor primary
Candidates
Nominated
Amy Klobuchar, incumbent U.S. Senator
Eliminated in primary
Steve Carlson
Stephen A. Emery
David R. Groves
Leonard J. Richards
Endorsements
Results
Republican primary
Candidates
Nominated
Jim Newberger, state representative (Minnesota GOP convention endorsed)
Eliminated in primary
Merrill Anderson, Past Candidate (Mayor of Minneapolis), Past Candidate (Governor of Minnesota) Rae Hart Anderson Rocky De La Fuente, 2016 Reform Party Presidential Nominee and perennial candidate
Declined
Tim Pawlenty, former governor of Minnesota (running for governor)
Endorsements
Results
Minor parties and independents
Candidates
Paula M. Overby (Green Party) Dennis Schuller (Legal Marijuana Now Party)
General election
Predictions
Debates
On August 24, MPR News hosted a debate between Amy Klobuchar and Jim Newberger at the Minnesota State Fair.
Fundraising
Polling
Results
Klobuchar won the election by a margin of 24.10%. She carried a clear majority of the state's 87 counties, won every congressional district, and had the biggest statewide margin of any statewide candidate in Minnesota in 2018. Klobuchar ran up huge margins in the state's population centers and trounced Newberger in the counties encompassing the Minneapolis-St. Paul area. As in her 2012 victory, she also won many rural counties. Klobuchar was sworn in for a third term on January 3, 2019.
Counties that flipped from Democratic to Republican
Morrison (Largest city: Little Falls) Todd (Largest city: Long Prairie) Jackson (Largest city: Jackson) Faribault (Largest city: Blue Earth) Nobles (Largest city: Worthington) Martin (Largest city: Fairmont) Cottonwood (Largest city: Windom) Dodge (Largest city: Kasson) Murray (Largest city: Slayton) Lincoln (largest city: Tyler) Redwood (largest city: Redwood Falls) Brown (largest city: New Ulm) McLeod (Largest city: Hutchinson) Meeker (Largest city: Litchfield) Wright (Largest city: Otsego) Sibley (Largest city: Gaylord) Benton (Largest city: Sauk Rapids) Sherburne (Largest city: Elk River) Isanti (Largest city: Cambridge) Chisago (Largest city: North Branch) Mille Lacs (Largest city: Princeton) Kanabec (Largest city: Mora) Marshall (Largest city: Warren) Lake of the Woods (Largest city: Baudette) Roseau (Largest city: Roseau) Clearwater (Largest city: Bagley) Polk (Largest city: East Grand Forks) Becker (Largest city: Detroit Lakes) Douglas (Largest city: Alexandria) Otter Tail (Largest city: Fergus Falls) Cass (Largest city: Lake Shore) Crow Wing (Largest city: Brainerd) Hubbard (Largest city: Park Rapids) Wadena (Largest city: Wadena)
By congressional district
Klobuchar won all 8 congressional districts, including three that elected Republicans.