The Last Word with Lawrence O'Donnell 05/29/12

Meet Mitt Romney's billionaire backers

Donald Trump may be making the headlines but the billionaire Romney really needs on his side is casino mogul, Sheldon Adelson, the most generous donor in the 2012 campaign. MSNBC's Lawrence O'Donnell, the Rolling Stone's Tim Dickinson and former DNC ... more Duration: {{video.duration.momentjs}}