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Wisconsin Primary Sets Up Marquee Battle for Control of US Senate

  • Democrat Barnes seeking to oust GOP incumbent Johnson
  • State will be a battleground in 2024 presidential election
Voters cast ballots at a polling station in Wauwatosa, Wisconsin, U.S.

Voters cast ballots at a polling station in Wauwatosa, Wisconsin, U.S.

Photographer: Daniel Acker/Bloomberg

Wisconsin voters on Tuesday are set to formalize Democrat Mandela Barnes and Republican Senator Ron Johnson as the contenders in a pivotal general election battle that will help decide control of the Senate for the next two years.

The nominations of Barnes, the state’s lieutenant governor, and Johnson, who is seeking a third term, in their party primaries is a foregone conclusion, and both candidates have already been training their attacks on each other in anticipation of the November general election.