Tonight on The Last Word: E. Jean Carroll testifies against Donald Trump in the defamation trial. Also, Senate Democrats hold a briefing on the state of abortion rights. Plus, the Supreme Court hears a case that could sharply weaken the executive branch's authority. And U.S. allies publicly warn against Trump's reelection. Andrew Weissmann, Faith Gay, Sen. Tammy Baldwin, Sen. Sheldon Whitehouse, and Rep. Adam Schiff join Lawrence O'Donnell.