Tonight on The Last Word: The Biden campaign releases an ad on Donald Trump's "blood bath" comment. Also, legal experts decode Judge Cannon's latest order. Plus, a New York judge denies Trump's motions to block testimony. And President Biden and Israel Prime Minister Netanyahu hold their first call in more than a month. Timothy Snyder, Andrew Weissmann, Bradley Moss, David Rothkopf, and Peter Beinart join Lawrence O'Donnell.