The Wisconsin Supreme Court ruled Tuesday that a Republican Party official lacked standing to challenge the use of a mobile voting van in the city of Racine during the 2022 primary election, a decision that could make it more difficult for conservatives to contest election procedures in the future.

Wisconsin’s Supreme Court election this spring will decide just one seat, but the contest already is shaping up as one of the most costly and contentious battles of the new year – with the control of the seven-member court and the fate of a 19th century abortion ban hanging in the balance.

The group Building America's Future is spending $1.6 million on television ads in the Wisconsin Supreme Court race that started airing Thursday and will run for two weeks in the state's five ...