When it comes to Trump, anything goes. He defends the violence at his rallies which now includes a black man being punched in the face, young black women being shoved by a group of people, and a group of black college students being escorted out of a rally at their own school and it looks like another incident occurred today in St. Louis where a black protester nose was bloodied. Someone also spit in the face of a Hispanic protester.
Accompanying all of this is racist rhetoric. The Huffington Post has put together a running list of incidents.