Cassidy Hutchinson, a former top aide to White House Chief of Staff Mark Meadows, told the January 6 committee that former President Trump knew protesters were heavily armed on the day of the Capitol riot. Hutchinson testified that when the former president's plan to join his supporters at the Capitol was rebuffed, he got physical with his own Secret Service. We have the latest reporting and analysis on the shocking testimony. Plus, one of the deadliest human smuggling cases in modern U.S. history is unfolding in southern Texas, where an official says at least 51 migrants are dead after they were abandoned in a tractor-trailer in San Antonio. Also, NBC’s Steve Kornacki breaks down what races we’re watching as voters head to the polls in seven states for primary and runoff elections. And convicted sex trafficker Ghislaine Maxwell’s victims speak out at her sentencing.