A Detroit police detective is under internal investigation after criticizing protesters following the shooting deaths of Dallas cops last week.
Demonstrators forced segregationist George Wallace to cut his speech short at Cobo hall in Detroit in 1968.
Hundreds of demonstrators are expected to show up in what could be the largest protest outside of a GOP debate so far this year.
Mayor Duggan responded in stride and didn’t seem fazed by the outbursts.
The protesters for the first time resorted to civil disobedience by locking arms and blocking Mack Avenue.
Heavily armed police used smoke bombs and tear gas t0 disperse crowds, arrested reporters and pointed rifles at crowds.
A spokeswoman for the event called the protesters “Wayne State cunts.”