Scott Walker through the years

Wisconsin Gov. Scott Walker, 47, is seeking the Republican nomination for president. A former state legislator and Milwaukee county executive, he won the statehouse in 2010 and, after pushing through a controversial law curtailing bargaining rights for public employees, survived a recall election two years later, and won a second term in 2014. If elected, he would be the first president since Harry S Truman without a college degree. (Jerry Adler/Yahoo News)

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