Republican Erik Olsen defeated his primary opponent Tuesday night in Wisconsin's 2nd Congressional District, setting up a battle to unseat Democrat Rep. Mark Pocan in the deep-blue district. 

The 2nd District spans the capital city of Madison – the most politically liberal city in the state – and Dane County. 

Madison attorney Erik Olsen defeated Charity Barry, a ground crew supervisor, in a primary that was a rematch of the pair's race in 2022. Olsen beat Barry in that first race by just 63 votes, according to a report in Wisconsin Public Radio.

Olsen will challenge Rep. Pocan for the seat he's held since 2013. 

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"It’s been a very quiet contest in a district that is not likely to elect a Republican anytime soon," University of Wisconsin-Madison political science professor Barry Burden told Wisconsin Public Radio. "But this is at least an opportunity for the party to pick a favorite and try to make a stab at winning a difficult seat."