into some serious trouble. >> joyce, things that happen in plain sight don't often have the gravity in realtime. twitter as a medium is all but entirely lacking in gravity. it's instantly available. it's ubiquitous. do you think what we saw in plain sight from the president's cell phone on sunday had a weight of a legal matter? >> it does. it will have ultimate weight here. i think twitter may end up being this president's undoing. many of the worst hits he has taken and that his presidency have taken have been own goals often from twitter or his own statements to the media. but this one is really a doozy by any standard. it's difficult to understand what may have motivated him.