VIDEO: The president of the Professional Fire Fighters Association of Wisconsin is expected to launch his candidacy for governor. Mahlon Mitchell has a series of events in Green Bay, Milwaukee and Madison on Monday to make a political announcement. Mitchell would join the large field of Democrats hoping for a chance to take on Republican Gov. Scott Walker next year. Mitchell says he will be joined at the events by local firefighters, workers, educators, students and small business owners "who believe it's time for a change in Wisconsin." Mitchell ran for lieutenant governor in the 2012 recall against Republican Lt. Gov. Rebecca Kleefisch.