Trump tariffs drive the stock market down 2,200 points. Also, Senate GOP and Democrats introduce a bill to limit Trump tariffs. Plus, Donald Trump fires the head of the NSA after meeting with 9/11 conspiracy theorist Laura Loomer. And former President Obama speaks about the Trump 2.0 era. Sen. Chuck Schumer, Sen. Elizabeth Warren, and Sen. Mark Warner join Lawrence O'Donnell.

Seven GOP senators back a bill to curb Trump tariff power. Also, the Trump administration targets hundreds of federal buildings for a potential sale. And a Trump-appointed judge orders the White House to lift the Associated Press ban. Sen. Sheldon Whitehouse, Jason Furman, Rep. Melanie Stansbury, and Andrew Weissmann join Lawrence O'Donnell.