Guests: Erin McLaughlin, Jon Finer, Simon Ostrovsky, David Folkenflik, Barbara McQuade

Tonight: Vladimir Putin escalates in Ukraine after an angry, televised spectacle. What we know about what's going on as more Russian troops cross the border, and what we know about the American response. Then, why is America's loudest mouthpiece rooting for the Russian autocrat? And a spectacular stumble out of the gates for Donald Trump's Twitter knock-off—and the CEO he chose to run it.