
In eight states holding legislative elections this year, fewer than 5% of seats would need to change party control to break an existing supermajority. We call those state supermajorities highly exposed to breaking. If a majority party loses its supermajority, they lose the ability to override a governor's veto without votes from the minority party. …

Julia Letlow (R) defeated John Fleming (R) to win a June 27 Republican primary runoff for U.S. Senate in Louisiana. Incumbent Bill Cassidy (R) did not advance from the primary after finishing third with 24% of the vote. NOLA's Tyler Bridges wrote ahead of the runoff, "As during the primary, Letlow and Fleming are both…

Keisha Lance Bottoms (D) and Rick Jackson (R) are running for Governor of Georgia in the November 3, 2026, general election. Incumbent Gov. Brian Kemp (R) is term-limited. The last Democrat elected governor was Roy Barnes in 1998. Independent election forecasters rated the general election Toss-up/Tilt Republican. Bottoms was the mayor of Atlanta from 2018…

Charlotte Bergmann, Brent Taylor, Jeremy Thompson, and Todd Warner are running in the Republican primary for U.S. House of Representatives in Tennessee's 9th Congressional District on August 6, 2026. The Tennessee Legislature redrew the majority-minority Memphis district in a May 2026 special session called by Gov. Bill Lee (R) following the U.S. Supreme Court decision…

In 2026, 15% of the state legislative incumbents running for election in Colorado will face primary contests, a record high since 2010. In total, nine incumbents face contested primaries across the Colorado House and Senate. The average number of incumbents contested each year from 2010 to 2024 was five. Six of the contested incumbents are…

In 2026, 20% of the state legislative incumbents running for election in Vermont will face primary contests, a record high since 2010. In total, 28 incumbents face contested primaries across the Vermont House and Senate. The average number of incumbents contested each year from 2010 to 2024 was 18. All but one of the contested…

Wisconsin has 24 contested state legislative primaries in 2026, 10% of all possible primaries and the second-smallest percentage since 2010. Fifteen of the primaries are for Democrats, and nine are for Republicans. In 2026, 6% of the state legislative incumbents running for election in Wisconsin will face primary contests, down from a record high of…

Max Engling defeated incumbent Diego Morales, Jamie Reitenour, and David Shelton to win the Republican Party nomination for Indiana Secretary of State at a June 20, 2026, convention. Party delegates elected in the primary voted at the convention to determine which candidate would earn the right to run as the party's nominee in the state's…

Robert White defeated Trent Holbrook, Greg Jaczko, Brooke Pinto, and Kinney Zalesne in the Democratic primary for the U.S. House of Representatives in Washington D.C., on June 16, 2026. White, Pinto, and Zalesne led in polling and campaign fundraising ahead of the election. On January 26, 2026, incumbent Eleanor Holmes Norton (D) announced she would…

Across 31 states with completed candidate filing data, an average of 23% of incumbent state legislators are running in contested primaries this year — the second-highest share since 2010, trailing only 2022. At the same time, the average share of open seats, at 17.4%, is the second-lowest since 2010. Among the 31 states with completed…