Governor Scott Walker of Wisconsin is currently campaigning for President. He recently spoke out against unions and announced his desire to dramatically curb their influence. Governor Walker would like to remove the agency that investigates unfair labor practices, and make it illegal for federal employees to unionize. This year, he signed the bill that made Wisconsin a right-to-work state.
See "Scott Walker Details Plan to Curb the Power of Labor Unions", Trip Gabriel, September 15, 2015