CNN: A relieved Mitt Romney headed back to the campaign trail Wednesday after sweeping crucial primaries in Arizona and his childhood home of Michigan to revitalize his campaign for the Republican presidential nomination.
Romney needed to win both states, but especially Michigan -- where he grew up when his father was governor -- to assert his ability to overcome the conservative challenge from former Pennsylvania Sen. Rick Santorum.
A Santorum victory in Michigan would have raised questions about how strong a candidate Romney is within his own party. » | Tom Cohen, CNN | Wednesday, February 29, 2012
