MADISON, Wis. -- Former presidential candidate John Kerry is set to speak at a series of rallies in Wisconsin Tuesday.

The U.S. senator from Massachusetts is encouraging people to vote early for Barack Obama.

Kerry will begin his day in Milwaukee at Red Arrow Park near City Hall and ask people to head to the polls immediately after his speech. Then the Democratic Party's presidential nominee in 2004 will head to similar events in Oshkosh, Madison and Mineral Point.

Kerry will take part in a rally in Madison on the Capitol Square at 3:30 p.m. Tuesday.

At Kerry's last rally in Madison, Bruce Springsteen entertained more than 50,000 people.

Stay tuned to WISC-TV and Channel 3000 for continuing coverage.