A new national poll appears to show Dr. Ben Carson edging ahead of Donald Trump among Republican primary voters, but the lead is only four points, 26 percent to 22 percent, respectively (and the margin of sampling error is plus or minus six percentage points for each candidate).
Moreover, polling of Iowans in recent days gave the lead to retired neurosurgeon Carson, too.
How significant is it to see Trump possibly falling in the numbers? In light of Carson's resonance with Republican voters, what is important to dissect about his policy platform and his campaign? Is the rest of the Republican field happy to sit back this early in the campaign?
Steve Shepard, chief polling analyst for Politico