Monday, March 9, 2020: Coronavirus Triggers Wall Street Plunge & Trump Tweetstorm

Coronavirus worries trigger a massive sell-off on Wall Street. The Dow and the S&P to drop precipitously as investors worry about the global economic impact and the mixed signals from the Trump administration. Plus, two-dozen tweets and retweets from a President who woke up in Florida angry. As lawmakers debate how to handle the Coronavirus, two Republican members of Congress self-quarantine because they spent time with a man who has tested positive for the illness. And Super Tuesday II is tomorrow: Six states have Democratic contests. Michigan is the biggest prize as Joe Biden hopes to open a big delegate lead, and Bernie Sanders scrambles to regain his footing. Today's panel: Margaret Talev with Axios, Olivier Knox with SIRIUS XM, and CNN's Dana Bash & Manu Raju Also on the show: Greg Ip with the Wall Street Journal, and CNN's Christine Ramos, Kaitlan Collins, Jeff Zeleny, and Donnie O'Sullivan

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