Rep. Mike Haridopolos, R-Fla., helped secure the defeat of Rep. Cory Mills, R-Fla., in the 2026 Republican primary, a move that Haridopolos says was necessary to protect the party's chances in the general election. Mills, who had public support from House GOP leadership and the White House, became one of only four Republican incumbents to lose a primary in the 2026 midterm cycle. Haridopolos recruited former journalist Ryan Elijah to challenge Mills, and Elijah won the race against Democratic former NASA official Bale Dalton. The Florida freshman stated that he alerted party leaders and the president's team that Mills was unlikely to defeat a strong Democratic candidate, urging him to step aside. When Mills refused, Haridopolos said he informed leadership he would assist another candidate in the primary.
Elijah credited Haridopolos with playing a central role in the campaign, noting that the congressman acted as a de facto spin room and handled numerous media interviews. Haridopolos described the decision to oppose a colleague as difficult but essential, emphasizing that politics is a team sport requiring collective effort. This approach has strengthened his standing within the party, according to House Majority Leader Steve Scalise, R-La., who has known Haridopolos for roughly two decades. Scalise called Haridopolos a trusted ally who delivers results and has a bright future as a natural leader.
Haridopolos currently chairs the House Science, Space, and Technology Committee’s space subcommittee, a role aligned with his district’s proximity to the Kennedy Space Center. He has advocated for public-private partnerships in space exploration, a strategy that contributed to the federal government’s increased investment in the sector. The Trump administration initially proposed a roughly 24% cut to NASA’s budget in May 2025, but President Donald Trump eventually signed a spending bill providing $24.4 billion for NASA, an increase from the initial $18.8 billion proposal. The administration also approved an additional $9.9 billion through the One Big, Beautiful Bill Act. NASA Administrator Jared Isaacman praised Haridopolos for understanding the significance of Florida and Kennedy Space Center to America’s future in space.
Before entering politics, Haridopolos served as a history professor at Eastern Florida State College. He is married to Stephanie Haridopolos, a physician who has recently served as acting surgeon general. A Republican aide familiar with Haridopolos’s operation noted that he prefers to resolve disputes behind closed doors rather than seeking media attention for personal gain. The aide said Haridopolos often declines interviews that do not fit his schedule and instead helps fellow members secure press coverage. Haridopolos has stated that he does not intend to pursue a leadership position after the upcoming elections, citing veterans like Rep. Brian Jack, R-Ga., Rep. August Pfluger, R-Texas, and Rep. Rudy Yakym, R-Ind., as better suited for such roles. He remains focused on working within the caucus to solve problems and maintain party unity.