
David Crowley (D) defeated Joel Brennan (D), Francesca Hong (D), and Kelda Roys (D) in the Democratic primary for governor of Wisconsin on August 11, 2026. Incumbent Tony Evers (D) did not run for re-election. Evers endorsed Crowley. Wisconsin Public Radio's Shawn Johnson and Rich Kremer said Evers' endorsement "underscored a schism in the state…

Peggy Flanagan (D) defeated Angie Craig (D) and four other candidates in the Democratic primary for U.S. Senate in Minnesota on August 11, 2026. As of August 2026, Flanagan and Craig led in endorsements, fundraising, and local media attention. Incumbent Tina Smith (D) did not run for re-election. Smith endorsed Flanagan. The Democratic-Farmer-Labor Party of…

Shannon Taylor (D) defeated Salaam Bhatti (D), Jason Knapp (D), and four other candidates in the Democratic primary for Virginia's 1st Congressional District on August 4, 2026. Taylor, Bhatti, and Knapp led in endorsements and fundraising. Taylor will face incumbent Rob Wittman (R) in the general election. The Virginia Mercury's Shannon Heckt said, "Voters in…

Donavan McKinney (D) defeated incumbent Shri Thanedar (D) in the Democratic primary for Michigan's 13th Congressional District on August 4, 2026. Local radio station WDET's Russ McNamara said Thanedar was "facing a difficult primary opponent, State Representative Donavan McKinney. The progressive Democrat has already been endorsed by Black leaders in Detroit and other [progressives] like…

William Lawrence (D) defeated Bridget Brink (D) and Matt Maasdam (D) in the Democratic primary for Michigan's 7th Congressional District on August 4, 2026. Lawrence will face incumbent Tom Barrett (R), first elected in 2024, in the general election. As of May 2026, major forecasting organizations rated the general election a toss-up. The Detroit Free…

Abdul El-Sayed (D) defeated Haley Stevens (D) in the Democratic primary for U.S. Senate in Michigan on August 4, 2026. Two-term incumbent Gary Peters (D) did not run for re-election. Peters endorsed Stevens on July 13, 2026. Crain's Detroit Business' David Eggert said the primary was "Michigan’s first truly competitive Democratic Senate primary in 32…

Incumbent Don Beyer defeated Lorena Bruner, Michael Duffin, Adam Dunigan, and Mo Seifeldein in the Democratic primary for Virginia's 8th Congressional District on Aug. 4. The primary reflected a broader division within the Democratic Party, with challengers framing incumbents as establishment politicians doing too little to counter President Donald Trump (R) and the Republican Party.…

Incumbent Rep. Wesley Bell (D) defeated four other candidates in the Democratic primary for Missouri's 1st Congressional District on Aug. 4, 2026. Bell and Cori Bush (D) led in noteworthy endorsements and fundraising. At the time of the election, this primary was one of five in the 2026 election cycle in which a former member of the U.S. House of Representatives ran against an incumbent member. Bush represented…

Five candidates are running in the Democratic primary for Minnesota's 5th Congressional District on Aug. 11, which includes Minneapolis and its surrounding areas. This primary will be the first since Operation Metro Surge, the federal immigration enforcement effort in Minnesota between December 2025 and February 2026. Three of those candidates lead in media attention: incumbent…

Six Democratic primaries for the Massachusetts Senate are scheduled for September 1, 2026. All 40 seats are up for election in the chamber, in which Democrats have a 35-5 majority. All six of those primaries qualified as battlegrounds under Ballotpedia’s battleground primary criteria. Two are open-seat contests — the 2nd Middlesex District and the 5th…