MILWAUKEE (AP) — The Latest on Wisconsin’s high stakes midterm election (all times local):

7:20 a.m.

Polls are open in Wisconsin’s high stakes midterm election where voters will decide whether Republican Gov. Scott Walker will keep his job or turn it over to Democrat Tony Evers.

Walker is facing his toughest political challenge yet in Evers, who wants to return state government’s top spot to Democrats for the first time since 2010.

Also on the top of the ticket is the U.S. Senate race in which Democrat Tammy Baldwin seeking a second term against Republican Leah Vukmir, a state senator. All of the U.S. House seats are on the ballot, too.

Voters are heading to the polls, some with umbrellas, as overcast skies and light rain fall across the state.

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6:09 a.m.

It’s too soon to tell what impact overcast skies, light rain, drizzle and snow showers will have on turnout this Election Day in Wisconsin.

Polls are open from 7 a.m. to 8 p.m. statewide. In addition to rain gear, voters will need to bring identification to the polls Tuesday.

That could be a Wisconsin driver’s license, a state-issued photo ID card, a U.S. military ID card, a tribal ID card, a U.S. passport or a student photo ID issued by a Wisconsin university with an expiration date no later than two years after the date of issue.

Meanwhile, the Wisconsin Elections Commission says more than 547,000 absentee ballots have already been returned for this election, breaking a record set in 2014 for a midterm election.