big supporter of bernie sanders. as donald trump is stirring things up in vermont, rival campaigns continue to trade fire and debate who would be the best candidate standard-bearer to take on hillary clinton. i want to turn it kornacki. so much attention on donald trump and ted cruz. but there s something exploding on the republican side between chris christie and marco rubio. this started because about a week ago marco rubio s super pac started running two attack ads against chris christie in new hampshire. rubio, christy along with jeb bush and kasich, they re all bunched together there in new hampshire, about 10, 12%. they re all desperately trying to break out up there. so the rubio super pac went after christie to try to take him down a notch. now christie has been coming back hard at rubio. he launched a response yesterday, today he s been taunting rubio on social media