Sign up for the MSNBC newsletter
You have been successfully added to our newsletter.
Let our news meet your inbox
The Last Word
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 rights activist Gayle Trotter, along with a mental health expert, psychiatrist Dr. Richard Friedman.