"Donald Trump's really seen some cratering in his support this week," said Dean Debnam, president of Public Policy Polling. "A key part of his message has always been that he's a winner and now that he's lost something Republicans- and especially conservatives- aren't finding him as compelling as they did a few weeks ago."
"We've found Hillary Clinton leading in Iowa by 6-8 points on our last two polls," said Dean Debnam, president of Public Policy Polling. "Bernie Sanders will likely make up some ground from Martin O’Malley voters moving toward him. To pull the upset he will need large numbers of voters who aren’t currently registered Democrats to show up on his behalf Monday night."