Democrat John Ewing unseated Republican Mayor Jean Stothert in Tuesday’s officially nonpartisan election to lead Omaha, a victory that ends the GOP’s 12-year hold on Nebraska’s largest city.

Stothert conceded the race after 9 PM local time with Ewing ahead 54-46, though more votes remained to be counted.

Ewing, who will be Omaha’s first Black mayor, overcame a large fundraising disadvantage in his campaign to deny Stothert what would have been an unprecedented fourth term.

But Ewing, who serves as Douglas County treasurer, benefited from voters’ unhappiness with the incumbent. The challenger argued Stothert had failed to solve the city’s transportation problems and strengthen the police force during her long tenure.

Ewing also sought to tie the mayor to Donald Trump, whom Stothert has tried to avoid associating with during her time leading this Democratic-leaning city. Ewing additionally enjoyed the support of former state Sen. Mike McDonnell, a Democrat-turned-Republican who came in third during the first round of voting.