The state's most crowded race for Congress will be a test of whether President Donald Trump's support in rural Minnesota has frayed.
Seven candidates are competing to fill the First District U.S. House seat left open by the DFL gubernatorial candidacy of Rep. Tim Walz. Regardless of the outcome at Saturday's endorsing conventions, both parties could be headed for primary contests on Aug. 14.
Voters in the district, which stretches along the Iowa border from South Dakota to Wisconsin, narrowly supported Barack Obama in 2008 and 2012, then flipped decisively in 2016 to back Trump over Democrat Hillary Clinton, 53 to 38 percent. Walz defeated Republican Jim Hagedorn, who's running again this year, by just 2,548 votes in 2016.
The seat is on the target lists of both national parties and is rated a tossup by politics handicappers at Cook Political Report, Inside Elections and Sabato's Crystal Ball.
Local party officials think the race is too close to call.
"This probably will live up to the billing as one of the most competitive races in the country," said Aaron Miller, GOP chairman in Olmsted County. "This is by far not a slam dunk for the Republican candidate."
Debra Hogenson, the district's DFL chairwoman, said that Democrats who felt in 2016 that Clinton would win "and their participation wasn't needed" are more energized now. "If our most conservative-leaning areas improve their Democratic vote just a little bit" the DFL can hold the seat, she said.
Seven of the district's 21 counties — Blue Earth, Fillmore, Freeborn, Houston, Mower, Nicollet and Nobles — voted twice for Obama, then supported Trump. That's the territory that could determine the outcome and help decide whether Republicans maintain control of the U.S. House.