The polls are now open in Wisconsin. The Milwaukee Election Commission expects about 30 percent of registered voters in the city to head to the polls.
Meanwhile, state election officials are reminding people that because this is a partisan primary, voters must choose candidates from just one party.
Today's partisan primary elections include races for governor, U.S. Senate and seats in the House of Representatives. These contests are drawing national attention, including from NPR's Weekend Edition Sunday.
Host Lulu Garcia-Navarro spent last week in Wisconsin reporting on issues that are driving voters to the polls, such as how tariffs could reshape Wisconsin's Senate race and an effort underway to engage African-American voters.