Wisconsin Gov. Scott Walker Officially Enters 2016 Presidential Race
Scott Walker, the political phenomenon who rose to national fame by taking on unions in one of the most blue-collar states, tweeted Monday morning confirming that he'll seek the Republican nomination for president, just hours ahead of his in-person announcement. "I'm in. I'm running for president because Americans deserve a leader who will fight and win for them," Walker tweeted, signing the message with his initials "SW," indicating it was written by him and not his staff.