Tonight on The Last Word: Donald Trump remains the world's biggest threat amid global chaos. Also, a Trump whistleblower announces his run for Congress. Plus, the UN Security Council calls for Gaza humanitarian pauses. And a new MSNBC documentary, "Periodical," examines reproductive policies and culture. Joyce Vance, Ben Collins, Eugene Vindman, Noga Tarnopolsky, Nicholas Kristof, Madeleine Morales and Anusha Singh join Ali Velshi.

Tonight on The Last Word: New details about Pres. Biden's role in the hostage deal.  Also, Fulton County District Attorney Fani Willis argues to revoke a Trump co-defendant's bail. Plus, Defense Secretary Austin travels to Kyiv to announce a $100M military aid package for Ukraine. And former Trump White House and Trump administration officials say Donald Trump should not be president again. Ben Rhodes, Ronen Bergman, Gwen Keyes, Harry Litman and Timothy Snyder join Lawrence O'Donnell.