Mitt Romney shakes hands as he walks into the House Chambers during inaugural ceremonies at the State House in Boston in 2003. the Obama campaign sought to focus attention on Romney's tenure as Massachusetts governor. Elise Amendola/AP hide caption

itoggle caption Elise Amendola/AP

Republican presidential candidate Mitt Romney speaks during a campaign rally Tuesday in Las Vegas. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Former Sen. John Edwards leaves the federal courthouse in Greensboro, N.C., on Tuesday. Chuck Liddy/MCT/Landov hide caption

itoggle caption Chuck Liddy/MCT/Landov