Donald Trump slammed GOP opponents Chris Christie, Nikki Haley, and Ron DeSantis for having “no loyalty,” RadarOnline.com has learned. Trump has been on a Truth Social rampage this week and with the Iowa Caucus just ten days away, he ramped up his attacks on his top three Republican rivals. After DeSantis grilled Trumpover his flip-flopping stance on abortion restrictions during a campaign event in Iowa, the ex-president unloaded on the Florida governor, who he said had “zero personality.” “Ron DeSanctimonious has one minor flaw against the Democrats — He has ZERO personality,” Trump wrote on …