IA-Dems:
IA-GOP:
...
NH-Dems:
NH-GOP:
...
The NBC/WSJ/Marist polls were conducted Jan. 2-7. In Iowa, the poll measured 2,821 registered voters (+/- 1.8], 1,094 potential GOP caucus-goers (+/- 3.0%), 456 likely GOP caucus-goers (+/- 4.6%), 977 potential Democratic caucus-goers (+/- 3.1%) and 422 likely Dem caucus-goers (+/- 4.8%)
In New Hampshire, the poll measured 1,888 registered voters (+/- 2.3%), 887 potential GOP primary voters (+/- 3.3%), 569 likely GOP primary voters (+/- 4.1%), 690 potential Dem primary voters (+/- 3.7%) and 425 likely Dem primary voters (+/- 4.8%).
http://www.nbcnews.com/meet-the-press/poll-neck-neck-2016-races-iowa-new-hampshire-n493361