Expert testifies Chauvin’s use of force was ‘excessive’

Tonight on the Last Word: Prosecutors call on Minneapolis Police officers to testify in Derek Chauvin’s trial. Also, the Biden administration hits the milestone of 150 million COVID vaccine shots in arms. Plus, the New York Times reports that Rep. Matt Gaetz sought “blanket pre-emptive pardons for himself and unidentified congressional allies” in the last weeks of former President Trump’s term. Colorado Gov. Jared Polis talks to Lawrence about the MLB moving the All-Star Game from Atlanta to Denver over Georgia’s new voting restrictions. And a study shows race motivated the violent pro-Trump mob on Jan. 6. Kirk Burkhalter, Marq Claxton, Andy Slavitt, Glenn Kirschner, Eddie Glaude and Christina Greer also join Lawrence O’Donnell.