The head of the Wisconsin state's firefighter union, Mahlon Mitchell, is running as a Democratic candidate.
Former state Rep. Kelda Helen Roys, a Democrat, says she is running "as herself." She recently appeared in a video where she breastfed her baby, touting her efforts in the Legislature to pass a bill banning the chemical bisphenol A from baby bottles and spill-proof cups.
MADISON, Wis. (AP) -- Only white men have served as governor in Wisconsin. It's a track record that three Democrats are looking to shatter this year.
Two women, Kelda Roys and Kathleen Vinehout, and one black man, Mahlon Mitchell, could make history if they win the primary and defeat Republican Gov. Scott Walker.
The other seven Democratic candidates are white men, just like every other governor in Wisconsin history.
Wisconsin is one of 28 states where at least one woman is expected to run for governor. Mitchell is one of at least eight black candidates running for governor nationwide.
Also, if Leah Vukmir wins the Republican primary, she would face Democratic Sen. Tammy Baldwin, marking the first time two women from the major parties have squared off for U.S. Senate.