President Trump has put the left on notice after several key members of his staff were publicly harassed over his administration's "zero tolerance" immigration policy, telling supporters in a letter: "Not on my watch."

After several high profile harassment incidents, Democratic Rep. Maxine Waters (CA) tossed a can of gasoline on the dumpster fire last weekend, calling for people to form into mobs and physically confront members of the Trump administration if they see them out in public. 

 "If you see anybody from that Cabinet in a restaurant, in a department store, at a gasoline station, you get out and you create a crowd and you push back on them, and you tell them they're not welcome anymore, anywhere," said Waters.