[Will88]

Conducted last night, the poll of 499 registered voters nationwide who said they’d vote in their state’s Republican primary or caucus has a margin of error of +/- 4%.

They think that the Union-Leader's endorsement of Newt caused this big change in nationwide voter opinion? It makes no sense to tie a national change to a New Hampshire newspaper endorsement. And 499 people polled nationwide?

[Hugin]

If you look at RCP you will see most of the polls sample in the 400-500 range. The less than half are in the 500-1000 range, with most of those in the lower end.