Day 8 of the Trump criminal trial: 3 witnesses take the stand All In with Chris Hayes

Guests: Harry Litman, Kristy Greenberg, Diane Kiesel, Phillip Hamilton, Jamelle Bouie, Jelani Cobb
The election conspiracy trial continues and a new witness takes the stand. Tonight: what we learned from day 3 of David P****r and the next two witnesses. Then, as Supreme Court mulls absolute immunity for a coup, why Donald Trump's own impeachment lawyer knew better. Plus, the latest on the campus protests.