Lawrence: Gabbard defying, not protecting Trump, in refusing to agree Iran posed imminent threat

Tonight on The Last Word: Top Trump officials evade accountability during a Senate Intelligence Committee hearing. Also, Sen. Rand Paul questions Sen. Markwayne Mullin’s “anger issues” in a confirmation hearing. Plus, Democrats claim Attorney General Pam Bondi is trying to avoid a subpoena. And a new MS NOW series exposes the impact of Donald Trump's pardons and commutations. Sen. Tammy Duckworth, Sen. Ruben Gallego, Rep. Ro Khanna, and Ken Dilanian join Lawrence O’Donnell.