CNN commentator and liberal talking head Sally Kohn went after Donald Trump during his speech at the Republican National Convention in Cleveland Thursday night, slamming him for allegedly “profiling” people by bizarrely pointing out mass shootings committed by “white guys” armed with “AK-15s.” Which…well, isn’t a real thing. […] Kohn tried to correct her multiple embarrassing mistakes — most notably when she mixed up an AR-15 with an AK-47 — before once again berating “the right” for pointing out the fact that…well, she clearly knows nothing about guns. …