This is the newest NBC News / Marist Poll for Iowa and New Hampshire. It was just released. The margin of error for Iowa Republicans is 5.3 points, and Iowa Democrats 5.5 points. The margin of error for New Hampshire Republicans is 4.9 points, and for New Hampshire Democrats is 5.4 points.
Donald Trump now has a significant lead in New Hampshire, and trails Walker by only 2 points in Iowa (which is within the survey's margin of error). If these numbers hold up, Trump could come out of the first two contests as the leader in delegates.
On the democratic side, Clinton leads Sanders by 24 points in Iowa and by only 10 points in New Hampshire. It looks like Sanders is doing well in New Hampshire (a state that borders his own home state of Vermont).