"You’re going to reshape the Democratic Party with your work," former Lt. Gov. Barbara Lawton told Sanders supporters.

Lawton is one of few Wisconsin elected officials who have endorsed Sanders over Clinton. She is joined by state Reps. Jonathan Brostoff, D-Milwaukee, and Eric Genrich, D-Green Bay, and Madison Mayor Paul Soglin.

Sanders echoed the themes he has sounded throughout his campaign, advocating equal pay, reproductive rights, LGBT rights, single-payer health care and raising the minimum wage to $15 an hour.

Lawton argued that while detractors say those ideas are "pie in the sky," that's better than "pigs at the trough."

Calling for an expansion of voting rights, Sanders said Walker and other Republican governors have been "working overtime to suppress the vote." Sanders presented himself — to overwhelming applause — as "the opposite of Scott Walker."

At the same time, Walker was campaigning for Texas Sen. Ted Cruz in Eau Claire.

Sanders urged voters to go to the polls in record numbers on Tuesday.

"If there is a large voter turnout we will win. If there is a low voter turnout we will likely lose," he said.