The Last Word with Lawrence O'Donnell 04/10/12

Rush Limbaugh laments Santorum's exit

Rush Limbaugh laments and Mitt Romney celebrates Rick Santorum's exit from the race for the Republican nomination. Santorum press secretary Alice Stewart and former Pennsylvania governor Ed Rendell join MSNBC's Lawrence O'Donnell to answer the question ... more Duration: {{video.duration.momentjs}}