The Associated Press projects that Trygve Hammer will win the Democratic congressional primary in North Dakota's single congressional district.
Hammer, a former teacher and military veteran, was running against Roland Riemers for the Democratic nomination in the race to succeed three-term Republican Rep. Kelly Armstrong.
With Republican Gov. Doug Burgum not seeking re-election to a third term as governor, Armstrong ran for the GOP gubernatorial nomination instead of bidding for re-election to Congress.
U.S. Rep. Kelly Armstrong is retiring to run for North Dakota governor. (Tom Williams/CQ-Roll Call, Inc via Getty Images)
Burgum, who unsuccessfully ran for the 2024 Republican presidential nomination before dropping out late last year and weeks later endorsing former President Trump, is considered a leading contender to serve as Trump's running mate.
North Dakota Gov. Doug Burgum speaks at a news conference with fellow Republican governors at an oil refinery in Chalmette, La., June 3, 2024 (Fox News/Paul Steinhauser)
No Democrat has won a congressional election in red-state North Dakota since 2008.
Republicans control the House with a 218-213 majority, and four seats (three controlled by the GOP and one by the Democrats) are vacant.