More polls out today:

The latest Quinnipiac poll has Donald Trump up by a nose in Iowa over Ted Cruz, 31 percent to 29 percent (a statistical dead heat). Marco Rubio is at 15 percent, and no one else is in double digits.

In New Hampshire, two new polls show Trump leading by either 11 points or 18 points. ARG has Rubio and John Kasich tied for second at 14 percent each. Monmouth has Kasich and Cruz tied for second at 14 percent each.

Carson is fading at 7 percent in Iowa.

Maggie Gallagher is a senior fellow at the American Principles Project.