U.S. Republican presidential candidate Mitt Romney and Florida Senator Marco Rubio address the media before holding a rally in Aston, Pennsylvania

 
U.S. Republican presidential candidate Mitt Romney and Florida Senator Marco Rubio address the media before holding a rally in Aston, Pennsylvania
U.S. Republican presidential candidate and former Massachusetts Governor Mitt Romney (R) and Florida Senator Marco Rubio address the media before holding a rally at Mustang Expediting in Aston, Pennsylvania April 23, 2012. REUTERS/Mark Makela (UNITED STATES - Tags: POLITICS ELECTIONS)