Six-State Primary Night Reshapes 2026 Map: Hilton Leads California, Trump Endorsement Stumbles in Iowa

Polls closed Tuesday night across six states in the most consequential round of primaries yet of the 2026 midterm cycle, with results in California, Iowa, New Jersey, Montana, New Mexico and South Dakota beginning to define the battlegrounds that will shape control of Congress and a slate of governorships in November.

The marquee contest unfolded in California, where Gov. Gavin Newsom is term-limited and dozens of candidates crowded onto a single "jungle primary" ballot. Steve Hilton, a conservative commentator and former Fox News host backed by President Donald Trump, jumped out to a commanding lead with roughly half the vote, positioning himself to advance to the general election. He is expected to face a Democrat — with former Health and Human Services Secretary Xavier Becerra and billionaire activist Tom Steyer battling for the second runoff slot as ballots continued to be counted. In Los Angeles, Mayor Karen Bass survived her own crowded field and advanced toward a fall runoff.

Iowa delivered an early setback for the president's endorsement record. In the Republican primary for governor, a race to succeed retiring Gov. Kim Reynolds, Zach Lahn defeated Rep. Randy Feenstra despite Trump's backing of Feenstra. Lahn will face Democrat Rob Sand, the state auditor, who captured his party's nomination. The state's marquee U.S. Senate contest is now set between Democrat Josh Turek and Republican Rep. Ashley Hinson.

In New Mexico, former Interior Secretary Deb Haaland won the Democratic gubernatorial nomination, advancing a bid that could make her the nation's first Native American woman elected governor. Down the ballot, Democratic Rep. Melanie Stansbury secured renomination in the state's 1st Congressional District. South Dakota Republicans renominated Sen. Mike Rounds, while New Jersey Democrats settled a series of competitive House primaries, returning veteran Rep. Frank Pallone Jr. to the ballot.

Taken together, the night offered an early read on a midterm environment that both parties are watching nervously. Trump's mixed scorecard — a likely win in California paired with a loss in Iowa — suggested the limits of his sway in down-ballot primaries even as his agenda dominates the national debate. With the general-election fields now taking shape, strategists in both parties signaled that the fights for governorships and a narrowly divided Congress will run through exactly the kind of states that voted Tuesday.

Tuesday's contests were the largest batch of the 2026 primary calendar so far, and party operatives on both sides treated them as an early gauge of an electorate whose mood will determine control of the House and Senate this fall. Democrats, hunting for pickups in California, New Jersey and competitive House districts, pointed to energized turnout in their primaries as evidence of momentum. Republicans countered that Hilton's commanding showing in deep-blue California signaled an opening in a state where the GOP has been an afterthought for a generation. Several of the nominees set Tuesday — from Haaland in New Mexico to the dueling Senate hopefuls in Iowa — will headline marquee November races, and the results offered the clearest snapshot yet of where each party's coalition stands heading into the heart of the midterm campaign.