Tonight on The Last Word: Trump must pay $83 million for lies about E. Jean Carroll; Carroll calls the verdict a "great victory." Also, a fake Biden robocall highlights the risk of misinformation. Plus, Ukraine aid stalls amid senate GOP disagreements. Lisa Rubin, Faith Gay, Susanne Craig, Alondra Nelson, Julia Angwin, and Simon Shuster join Ali Velshi.

Tonight on The Last Word: Esteemed historians file an amicus brief ahead of the February 8 Supreme Court hearing in the Donald Trump ballot case. And Trump attacks the United Auto Workers president after the union endorsed President Biden for reelection. Professor David Blight, Neal Katyal, and Shawn Fain join Lawrence O'Donnell.