AdvertisementWisconsin's Primary To Pick Gov. Walker's ChallengerMay 08, 2012David SchaperfacebookEmailTom Barrett and Kathleen Falk chat before the start of a live debate for Democratic gubernatorial primary candidates Friday at the Wisconsin Public Television studio in Madison. The front-runners vying for a chance to take on Republican Gov. Scott Walker in a June recall election bashed the governor during the debate. Not pictured are fellow candidates Doug La Follette and Kathleen Vinehout. (AP)