Families mourn the victims of the D.C. plane crash. Also, NBC News reports two black boxes were recovered on the regional jet. Plus, DNI pick Tulsi Gabbard refuses to condemn Edward Snowden. And Democratic senators grill Trump FBI pick Kash Patel. Capt. Sully Sullenberger, Sen. Tammy Duckworth, Sen. Mark Warner, and Andrew Weissmann join Lawrence O'Donnell.

Treasury Secretary Scott Bessent grants Elon Musk unprecedented access to sensitive data. Also, Donald Trump releases water in California, but floods areas unaffected by wildfires. Plus, prominent attorneys warn the Trump Justice Department against publicly releasing the names of purged officials. Norm Ornstein, E.J. Dionne, Sen. Adam Schiff, Frank Figliuzzi, and Andrew Weissmann join Lawrence O'Donnell.