firestorm. true to form trump is not backing down. >> reporter: nbc universal cut its ties with donald trump reciting derogatory statements calling mexican immigrants. rapists, drug dealers and criminals. the real estate mogul stood by the comments before a packed house in chicago. quoting a report by fusion owned by spanish language channel univision and abc. >> they thing it is like mother teresa is coming across the border okay. this one said 80% of central american women and girls are raped crossing into the united states. well i said drug dealers. i said killers. and i said rapists. >> nbc says it will no longer air the miss usa or miss universe pageants partly owned by trump following a similar step by univision which dumped the event. trump is threatening to sue.