Pulminologist Dr. Martin Tobin delivers stunning medical testimony on day 9 of Chauvin trial

Tonight on The Last Word: The trial of Derek Chauvin continued today as Dr. Martin Tobin directly tied George Floyd’s death to Officer Chauvin essentially shutting down Floyd’s left lung, pointing out that the amount of time from when George Floyd takes his last breath to when Derek Chauvin takes his knee off of his neck was 3 minutes and 27 seconds. Melissa Murray and Kirk Burkhalter react to Dr. Tobin’s crucial expertise. An associate of Matt Gaetz is expected to plead guilty to charges of sex trafficking of a minor, potentially opening the door for them to cooperate with DOJ as they continue their investigation into Rep. Gaetz. Also, the Trump Organization has hired a criminal defense attorney to represent them in the possible fraud case being handled by the Manhattan D.A.’s office. Andrew Weissman and Daniel Goldman join Lawrence O’Donnell. Rep. Joe Neguse also joins to react to the executive actions on gun violence taken today by President Biden. Plus, a special Last Word from Sister Simone Campbell, an important ally for President Obama as he was trying to pass the Affordable Care Act, is stepping down from her work as executive director for the Network Lobby for Catholic Social Justice after more than four decades of political activism around poverty, justice, and health care.