The Last Word with Lawrence O'Donnell 01/30/13

O'Donnell to Trotter: 'You don't go to the Senate to imagine things!'

MSNBC's Lawrence O'Donnell still had questions after Wednesday's Senate Judiciary Committee hearing on President Obama's proposed gun control legislation- so he reassembled two key witnesses today, Baltimore County Police Chief Jim Johnson and gun ... more Duration: {{video.duration.momentjs}}