Politics everywhere w/ Meyerson; Keith Ellison w/ Dayen & Guns in Schools w/Weingarten

Republican Senate candidate and current Florida Gov, Rick Scott challenged Trump today on Puerto Rico casualty figures; SCOTUS nominee Kavanaugh has been accused of sexual misconduct, and, measuring the Blue Wave now that Obama has joined the campaign — Harold Meyerson with the political update. Next, Keith Ellison, the first Muslim elected to the U.S. Congress, has quit the House to run for state Attorney General. What was he thinking? David Dayen reports. Plus: Unions are fighting for their lives and DeVos wants to put more guns in schools — we talk with Randi Weingarten, president of the American Federation for Teachers about the state of education.