Trump-backed Rep. Harriet Hageman wins Republican Senate primary in Wyoming

2026 ElectionTrump-backed Rep. Harriet Hageman wins Republican Senate primary in WyomingHageman, Wyoming’s lone House member, won the GOP nomination in the race to succeed retiring Sen. Cynthia Lummis, NBC News projects. Listen to this article with a free profile00:0000:00GOP Rep. Harriet Hageman will be heavily favored to win the Wyoming governor's race this fall.Mariam Zuhaib / AP fileShareAdd to GoogleAug. 18, 2026, 10:53 PM EDTBy Megan BrandRep. Harriet Hageman has won the Republican primary for Wyoming’s open Senate seat, NBC News projects, advancing to the general election in the deep-red state.Hageman had the support of President Donald Trump as she ran against four Republican opponents. Trump weighed in to offer his “complete and total endorsement” on Truth Social shortly after she announced her candidacy in December.Hageman won her House seat with Trump’s support in 2022, when she ousted Rep. Liz Cheney, a Trump critic, in a Republican primary. Trump backed Hageman after Cheney voted to impeach him in 2021 and later joined the House committee investigating the Jan. 6 Capitol riot and spoke out forcefully against the 2021 attack.“I know Harriet well, and she is a TOTAL WINNER!” Trump wrote in his post endorsing her in this year’s election. “Harriet has ALWAYS delivered for Wyoming, and will continue to do so in the United States Senate.”Hageman emerged from a primary field that included former Kirby Mayor Sam Mead, who partially self-funded his campaign. His uncle, Matt Mead, was governor from 2011 to 2019. Cheney conceded her 2022 primary race at an event at the Mead family ranch, according to Wyoming Public Media, and Mead said he was “proud of her for standing up for the truth.” The Wyoming Senate seat is open this year after Sen. Cynthia Lummis, a Republican, announced in December that she would not seek re-election. Lummis, 71, said at the time that she did “not have six more years in me.” Wyoming is a deep-red state and has not had a Democratic se...