Back in July, Scott Walker led the Republican presidential pack in Iowa by a solid eight percentage points. Now, the Wisconsin governor is way back in 10th place in the Hawkeye State, which will hold its first-in-the-nation caucuses on Feb. 1, 2016. Those numbers come from a new Quinnipiac University poll released Friday, which shows that Walker's support in Iowa has fallen from a pack-leading 18 percent in July to 3 percent today. Donald Trump leads in the new poll, with the support of 27 percent of Iowa's Republican voters.