Mitt Romney smiles during a campaign event at the Exhibit Edge building in Chantilly

 
Mitt Romney smiles during a campaign event at the Exhibit Edge building in Chantilly
Republican presidential candidate and former Massachusetts Governor Mitt Romney smiles during a campaign event at the Exhibit Edge building in Chantilly, Virginia May 2, 2012. REUTERS/Benjamin Myers (UNITED STATES - Tags: POLITICS ELECTIONS)