Ari Shapiro http://michiganradio.org en Romney, Santorum battle for Michigan votes http://michiganradio.org/post/romney-santorum-battle-michigan-votes Along with Arizona, Michigan holds its Republican presidential primary Tuesday. If Rick Santorum beats native son Mitt Romney in Michigan, it could throw the race into turmoil. Mon, 27 Feb 2012 15:17:43 +0000 Ari Shapiro 6380 at http://michiganradio.org