Voters across Wisconsin went to the polls Tue. to set the stage for this April's high-stakes Supreme Court election.

What's happening? Wisconsinites will vote this April to fill in outgoing Justice Patience Roggensack's seat on the court.

The stakes are high: this April's Supreme Court election could flip the court's majority from conservative to liberal.(AP)

Conservatives currently hold a 4–3 majority on the state court; this April's election could end their 15-year reign. (AP)

Liberal Milwaukee Judge Janet Protasiewicz and conservative former Justice Dan Kelly prevailed in Tue.'s four-way primary.

Wisconsin Supreme Court primary results, 95% reporting (NYT): 🗳️Protasiewicz: 46.5% 🗳️Kelly: 24.3%

Who is Protasiewicz? Protasiewicz has served as a judge on the Milwaukee County Circuit Court since 2014. (Ballotpedia)

Prior to her tenure as a judge, Protasiewisc served as Milwaukee County's assistant district attorney for 26 years. (BP)

Protasiewicz has been endorsed by all three members of the court's liberal bloc and the state Democratic party. (AP)

Who is Kelly? Kelly served as a justice on Wisconsin's Supreme Court for four years after being appointed in 2016. (AP)

In 2020, Kelly ran for a full 10-year term on the Supreme Court and lost to liberal Justice Jill Karofsky by 11 points.

Kelly has been endorsed by conservative Justice Rebecca Bradley. Kelly was also endorsed by Trump in 2020. (WPR)

The race could decide 2024: in 2020, the court came within one vote of overturning the state's election results. (WPR)

Wisconsin will be a battleground state in 2024: Pres. Biden won the state in 2020 by 0.63 points and 20K+ votes. (AP)

What's next? Well, the general election is set to be held on April 4. (WPR)