Voters in six states on Tuesday decided which candidates will face off in November in House and Senate races that could determine whether the balance of power will shift in the next Congress.
Milwaukee County Executive David Crowley, a centrist Democrat, narrowly won the Democratic primary in Wisconsin in a major upset in the race for governor, the Associated Press projects. He defeated Wisconsin assemblywoman Francesca Hong, a democratic socialist, in what became a high-stakes test for progressives who pinned their hopes on winning a major party nomination in a crucial battleground state.
And in Connecticut, 14-term Rep. John Larson became the seventh House Democrat incumbent to lose a primary during this election cycle.
Here's a look at Tuesday's primaries:
Republican and Democratic candidates in Wisconsin are vying to win the first open gubernatorial seat since 2010, replacing Democratic Gov. Tony Evers, who announced last year that he wouldn't run for reelection.
There are also primaries in both parties that could have an impact on which controls the House next year.
Live Wisconsin primary results
Incumbent Democratic Rep. John Larson will lose the Democratic primary for his 1st Congressional District seat to challenger Luke Bronin, the former mayor of Hartford, ABC News projects. Larson has held his seat since 1999. Larson is the seventh incumbent House Democrat to lose in primaries this year.
And Gov. Ned Lamont, who was elected in 2018, will fend off a primary challenge from Josh Elliott, ABC News projects. He'll face Republican Ryan Fazio in November.
Live Connecticut primary results
Sen. Amy Klobuchar will win the Democratic governor primary, ABC News projects, in the race to replace Democratic Gov. Tim Walz, who is retiring. She will face state House Speaker Lisa Demuth, who ABC projects will win the Republican governor's primary, in November.
ABC News also projects Lt. Gov. Peggy Flanagan will win the Democratic primary in the race to replace Democratic Sen. Tina Smith, who is also retiring. She'll face former NFL sideline reporter Michelle Tafoya, who ABC projects will win the Republican primary for Senate.
Minnesota also voted in primaries for several House races that could help determine the balance of power in Congress.
Live Minnesota primary results
Darline Graham, the sister of the late Sen. Lindsey Graham who was appointed to fill the remainder of her brother's term, will face Rep. Ralph Norman in an Aug. 25 runoff to replace Lindsey Graham on the November ballot, ABC News projects.
Lindsey Graham's death in July sparked a rapid-fire campaign season. Eight other candidates besides Graham and Norman were running for the seat.
Live South Carolina special Senate primary results
Economist Amanda Janoo will win the Democratic primary for governor, ABC News projects, and will face incumbent Republican Gov. Phil Scott in the general election in November.
In Alabama, some voters decided several House races following the Supreme Court decision that limited portions of the Voting Rights Act and led several states in the South to take part in mid-decade redistricting.
Primaries were held in May, but Republican Gov. Kay Ivey pushed back those in the 1st, 2nd, 6th and 7th districts that were impacted by redistricting after the Supreme Court decision.