American democracy at stake in Mueller fight, says Nadler

President Trump’s decision to defy a House Judiciary Committee subpoena for the unredacted Mueller report has the administration and House Democrats on a collision course--one House Judiciary Committee Chair Jerry Nadler refers to as a constitutional crisis. Judy Woodruff talks to Nadler, a New York Democrat, about the administration's "complete defiance of the law" and why democracy is at stake.