Anti-Donald Trump protesters and his supporters confront during a Trump rally at the UIC Pavilion in Chicago on March 11, 2016.
Republican White House hopeful Donald Trump cancelled his appearance at a Chicago rally Friday amid extraordinary scenes of chaos, with hundreds of protesters clashing with the frontrunner's supporters and police struggling to maintain order. (Photo credit should read Tasos Katopodis/AFP/Getty Images)
Republican White House hopeful Donald Trump cancelled his appearance at a Chicago rally Friday amid extraordinary scenes of chaos, with hundreds of protesters clashing with the frontrunner's supporters and police struggling to maintain order. (Photo credit should read Tasos Katopodis/AFP/Getty Images)