Democrat Sam Forstag has won Montana's 1st Congressional District, according to Decision Desk HQ, flipping a seat that Republicans had been favored to retain and giving his party a crucial pickup in their push to win the House majority.
Forstag, a former smokejumper and union leader, defeated Republican Aaron Flint, a retired Army lieutenant colonel, in the race for the open seat covering western Montana, including Missoula. He will succeed retiring GOP Rep. Ryan Zinke.
With early returns showing Forstag leading Flint by more than 10 points (54% to 43%), the victory marks a significant upset in a district that President Trump carried by 11 points in the last election. While most election handicappers initially rated the race as leaning Republican, Cook Political Report shifted it to a "toss up" in mid-October, noting that Forstag had "a clear shot" at winning—a forecast that proved accurate.
Forstag's campaign leaned heavily on his working-class background and his time leading a union local, earning endorsements from multiple labor organizations. He also secured the backing of former Montana Gov. Marc Racicot, a Republican, which helped him appeal to crossover voters in the GOP-leaning district.
However, Forstag's past as a lobbyist drew sharp criticism. The conservative Leadership in Action PAC ran an attack ad highlighting $249,000 in lobbying fees he had collected, questioning his commitment to working families. Forstag's campaign countered that his lobbying work was in line with his union advocacy and that he had always fought for Montana's workers.
The flip is a blow to Republicans, who had hoped to hold the seat as part of their broader strategy to maintain control of the House. It also underscores the strength of Democratic momentum in a number of competitive races across the country, including other flips in Tennessee and Wisconsin.
Forstag's victory adds to a growing list of Democratic pickups that could prove decisive in the battle for the chamber. As the night unfolded, Democrats also celebrated wins in Maine's Senate race and Wisconsin's 1st District, signaling a challenging environment for the GOP.
In his victory speech, Forstag struck a conciliatory tone, vowing to represent all Montanans and work across the aisle on issues like infrastructure, healthcare, and public lands. "This campaign was about bringing people together," he said. "Now the real work begins."
Flint conceded the race late Tuesday night, congratulating Forstag and thanking his supporters. He said he hoped the district would still have a strong voice in Washington, even if it wasn't his.
The outcome in Montana's 1st is a reminder of the volatility of the current political landscape, where even districts that lean heavily toward one party can shift with the right candidate and message. For Democrats, it's a sign that their strategy of focusing on working-class issues and local endorsements can pay off—even in territory that has been reliably red in recent cycles.
