>> i'm a u.s. citizen. >> well, whatever. >> okay. >> we have a problem in this country it's called muslims. we know our current president is one. you know he's not even an america american. >> a zblrnlthsz. >> donald trump supporters lashing out at hecklers. one man yelling a nazi salute. >> donald trump was met by a contentious crowd at a rally late last night. >> you say he was roughed up. he was so loud, this guy started screaming by themselves. i don't know rough up. he should have been, maybe he should have been roughed up. >>. >> isn't a trump rally much more exciting than these other guys?