The Wisconsin Elections Commission says no major problems have been reported across the state as voters cast their ballots in the primary.
The commission says statewide turnout figures for Tuesday’s elections are not available yet.
Wisconsin is among four states holding primaries Tuesday. Connecticut, Minnesota and Vermont are the others.
In Milwaukee, the Journal Sentinel reports that election officials are projecting turnout to be 25 to 30 percent of the city’s registered voters, which is about 75,000 people. The turnout is about 10,000 more than the 2014 gubernatorial primary.
Democratic voters are choosing among eight candidates to challenge Gov. Scott Walker in November. Republican voters are deciding between Leah Vukmir and Kevin Nicholson to challenge Democratic U.S. Sen. Tammy Baldwin.