Romney sweeps three GOP primaries Mitt Romney won Republican presidential primaries in Maryland, the District of Columbia and Wisconsin, cementing his front-runner status.
Romney takes 6 states on Super Tuesday Leading Republican presidential contender Mitt Romney took six of 10 states in Super Tuesday primaries, including a narrow victory in coveted Ohio.
Romney wins in Michigan, Arizona Mitt Romney won Republican primary contests in Arizona and Michigan, maintaining his front-runner status.