Lawrence: Trump's potential legal challenge? Convincing a jury he loves his wife

The Last Word with Lawrence O’Donnell - A podcast by Lawrence O'Donnell, MSNBC

Tonight on The Last Word: Witness David Pecker testifies to the New York Trump grand jury. Also, Sen. Elizabeth Warren launches her campaign for a third term. And six people are killed in a shooting at a Nashville Christian school. Neal Katyal, Daniel Horwitz, Sen. Elizabeth Warren and David Hogg join Lawrence O’Donnell.