get publicity, he sing to a really good job of that. reporter: trump has not backed down telling cnn s don lemon crime is rampant along the border. somebody s doing the raping don. reporter: now he s turning to twitter to fire back at his rivals saying jeb bush says illegal immigrants breaking our laws is an act of love. trump is also pointing to a shooting of a young woman in san francisco as an example of failed u.s. immigration policies. police say she was killed by an undocumented immigrant with a long criminal record. today, republican presidential hopeful george pataki urged all gop candidates to stand up to trump. it s not appropriate to use that to demonize millions of people who have come from mexico and to try to paint them as all being like that horrible criminal in san francisco. a short time ago the trump campaign released a statement. they were doubling down on his remarks. he says the mexican government is forcing their most unwanted