American Research Group released new polls for Iowa, New Hampshire and South Carolina for both parties. First, the Democrats where Hillary Clinton leads in all the states:

Iowa
Clinton 32 (+1 vs. 5/23 - 5/26 poll)
Edwards 29 (+4)
Obama 13 (+2)
Richardson 5 (-3)

RCP Average: Edwards +1.7.

South Carolina
Clinton 37 (+3 vs. 5/23 - 5/26 poll)
Edwards 22 (-8)
Obama 21 (+3)
Richardson 1 (n/c)

RCP Average: Clinton +2.7.

New Hampshire
Clinton 34 (n/c vs. 5/24 - 5/27 poll)
Obama 25 (+10)
Edwards 11 (-7)
Richardson 6 (-3)

Additionally, Rasmussen Reports released its first New Hampshire poll for Democrats:

Clinton 38
Obama 21
Edwards 10
Richardson 9

RCP Average: Clinton +12.6.

On the Republican side, ARG now has Mitt Romney leading in Iowa and New Hampshire, with Fred Thompson moving up into double digits in those states and nearing 20% in South Carolina:

Iowa
Romney 25 (+9 vs. 5/24 - 5/27 poll)
Giuliani 18 (-5)
Thompson 14 (+8)
McCain 13 (-12)
Gingrich 5 (-3)

RCP Average: Romney +6.5.

New Hampshire
Romney 27 (+4 vs. 5/24 - 5/27 poll)
McCain 21 (-9)
Giuliani 19 (-2)
Thompson 10 (+7)
Gingrich 4 (n/c)

RCP Average: Romney +8.2.

South Carolina
McCain 23 (-9 vs. 5/23 - 5/26 poll)
Giuilani 22 (-1)
Thompson 19 (+6)
Romney 8 (-2)
Gingrich 6 (n/c)

RCP Average: Giuliani +4.2.