The 2026 primary season kicks off this month, with pivotal races across multiple states testing Donald Trump’s influence over the GOP ahead of the midterm elections.
The 2026 primary season is set to intensify in May, featuring races across a dozen states that could significantly impact the upcoming midterm elections. As Republicans defend their slim majorities in both the Senate and House, the outcomes of these primaries will be closely scrutinized, particularly in relation to former President Donald Trump’s enduring influence within the party.
The action begins on May 5, when Indiana and Ohio hold their primaries. Following that, Nebraska and West Virginia will conduct their contests on May 12, with Louisiana’s nominating event scheduled for May 16. The month culminates on May 26, when Texas will host runoff elections. Notably, May 24 will be the busiest day, featuring primaries in Alabama, Georgia, Idaho, Kentucky, Oregon, and Pennsylvania.
One of the most significant races to watch is in Indiana, where Trump’s grip on the GOP will be tested. Five months ago, Republican lawmakers in the state Senate resisted pressure from Trump and his allies, opting not to approve a congressional redistricting plan that would have added two Republican-leaning U.S. House seats. In response, Trump endorsed challengers to eight GOP state senators who opposed the redistricting initiative. His allies have invested millions to support these challengers, including organizations like Turning Point USA and the Club for Growth.
This intra-party conflict is seen as a critical test of loyalty to Trump, pitting MAGA supporters against more traditional conservatives. David McIntosh, president of the Club for Growth and a former congressman from Indiana, emphasized the need for a shift in the party’s leadership, stating, “We’ve got to change those old-style Republicans, put in people who will fight against the Democrat gerrymandering.”
In neighboring Ohio, the gubernatorial race is shaping up with less drama. Vivek Ramaswamy, a biotech entrepreneur and former presidential candidate, is poised to secure the Republican nomination in his home state. Backed by Trump, Ramaswamy will face Dr. Amy Acton, a former state health director, who is unopposed in the Democratic primary. The winner will replace term-limited Republican Governor Mike DeWine.
Ohio’s Senate primary is similarly straightforward, with appointed Republican Senator Jon Husted facing no challengers in the GOP primary. Former Democratic Senator Sherrod Brown is expected to easily win his party’s nomination. The victor in this race will serve the remaining two years of Vice President JD Vance’s term, following Vance’s departure from the Senate after the Trump-Vance ticket won the 2024 presidential election.
Once a battleground state, Ohio has shifted toward the Republican side in recent years, with Trump winning the state by 11 points in the 2024 election. However, the upcoming races for governor and Senate are anticipated to be competitive, with the Senate race being crucial for the GOP’s majority in the chamber.
In Louisiana, Senator Bill Cassidy faces primary challenges from two Republican candidates: Representative Julia Letlow and former Representative John Fleming, who currently serves as the state treasurer. Trump’s endorsement of Letlow adds another layer of complexity to this race. Cassidy was one of only seven Senate Republicans who voted to convict Trump following his impeachment in early 2021. Despite this, Cassidy has supported Trump’s agenda since the beginning of his second term.
If no candidate secures more than 50% of the primary vote, the top two finishers will advance to a runoff election on June 27.
Another key race to monitor is in Kentucky’s 4th Congressional District, where incumbent Representative Thomas Massie is being challenged by Trump-backed Ed Gallrein. Massie has been one of Trump’s vocal critics in Congress, particularly regarding issues related to foreign policy and the Epstein files. Trump’s allies have invested heavily in supporting Gallrein’s campaign.
In Georgia, the GOP gubernatorial nomination is also in play, with Trump endorsing Lieutenant Governor Burt Jones in a competitive race against healthcare executive and GOP donor Rick Jackson. Other notable candidates include state Attorney General Chris Carr and Georgia Secretary of State Brad Raffensperger. On the Democratic side, former Atlanta Mayor Keisha Lance Bottoms is the frontrunner, facing competition from former DeKalb County CEO Mike Thurmond and former Republican lieutenant governor Geoff Duncan, who has switched parties.
Republicans are aiming to flip a U.S. Senate seat in Georgia, viewing first-term Senator Jon Ossoff as vulnerable. However, Ossoff has built a substantial campaign war chest, making the race challenging for the GOP. Additionally, a contentious primary is underway among major contenders, including Representatives Mike Collins and Buddy Carter, along with former college football coach Derek Dooley, who is backed by Governor Kemp. Trump has not yet taken a position in this Senate primary.
In Texas, longtime GOP Senator John Cornyn is facing a runoff election against state Attorney General Ken Paxton, a prominent Trump supporter. Cornyn narrowly defeated Paxton in an earlier primary, but with no candidate achieving a majority, both will compete in the runoff. The winner will face Democratic nominee James Talarico, a rising star in the party who raised an impressive $27 million in the first quarter of this year.
As the primary season unfolds, both parties are keenly aware that the outcomes in these races could significantly influence the balance of power in Congress. The stakes are high, and the results will be closely monitored as the midterm elections approach, according to Fox News.