Video from outside of Donald TrumpDonald John TrumpBiden slams Trump over golf gif hitting Clinton Trump Jr. declines further Secret Service protection: report Report: Mueller warned Manafort to expect an indictment MORE's rally in Kansas City, Mo., shows at least five police officers using pepper spray against protesters. 

Trump has been under fire this week for the escalating violence between his supporters and anti-Trump protesters. 

Kansas City Police reported that they used pepper spray twice at the event.