A man wearing a Donald Trump T-shirt attacked a person at a campaign event for Hillary Clinton in North Carolina on Sunday. The man was arrested and charged with a misdemeanor after punching another person at the Charlotte event, local police told CNN. It was not clear what, if anything, prompted the attack. The assault reportedly did not cause serious injuries. Clinton responded to the disruption by saying, “Some people are just sore losers; we just have to keep going.” The assault is the latest episode of violence in a presidential race plagued by angry protests and clashes at rallies, with Trump sometimes egging on his supporters. Yet the violence has not been limited to Trump’s events. A GOP county headquarters in North Carolina was firebombed this month, with threats made to Republicans to “leave town or else,” ny daily news reported.