Why Trump's verbal assault on Baltimore sounds familiar

President Trump is verbally assaulting the city of Baltimore. On Monday, civil rights activist Al Sharpton and Maryland Republicans Gov. Larry Hogan and former Lt. Gov. Michael Steele all slammed Trump’s attacks on Rep. Elijah Cummings, D-Md., and Baltimore, which he called a “disgusting, rat and rodent infested mess.” Lisa Desjardins reports on how Trump’s words are again stoking racial tensions.