Donald Trump ousts Mike Waltz as national security advisor. Also, Trump nominates "Stop the Steal" organizer Ed Martin for a key prosecutor post. Plus, Trump tariffs are wreaking havoc on U.S. small businesses. And a Trump-appointed judge in Texas rules Trump's Alien Enemies Act invocation is "unlawful."  Sen. Adam Schiff and Rick Woldenberg join Lawrence O'Donnell.

Donald Trump says kids might have "two dolls instead of 30" in response to tariffs. Also, The New York Times reports a declassified memo shows U.S. intelligence agencies rejected the Trump administration's rationale for deportations. And Trump says "I don't know" when asked if he needs to uphold the Constitution. Sen. Amy Klobuchar and Andrew Weissmann join Lawrence O'Donnell.