In April 2012, former Massachusetts Gov. Mitt Romney eked out a win in Wisconsin's Republican primary over insurgent former Pennsylvania Sen. Rick Santorum. Santorum's loss forced him to suspend his campaign a week later, leading to a sense of inevitability for Romney's campaign. Romney later lost the state to incumbent President Barack Obama in the general election.
2012 Republican winner: Mitt Romney
Republican presidential candidate Mitt Romney, left, speaks to volunteers for Gov. Scott Walker on March 31, 2012 in Fitchburg. Rep. Paul Ryan (R-Janesville) stands behind Romney.
Wisconsin has one of the longest traditions of holding presidential preference primaries in the United States. Here is every primary winner th…
