Have we reached a tipping point in Iowa? With the addition of ARG's new poll of the Democratic race in the Hawkeye State, Obama has taken the lead in the RCP Average in Iowa for the first time - by a scant 0.4%.

On the GOP side in Iowa, Romney and Huckabee remain locked in a tight, two-way battle.

Also, ARG shows Mike Huckabee nearly doubling his support in New Hampshire over the last 2 weeks to 13%, which moves him into fourth place ahead of Ron Paul in the updated RCP Average for New Hampshire.

Clinton remains well ahead on the Democratic side in New Hampshire, +12.5% in the RCP Average.

Lastly, ARG shows Huckabee surging in South Carolina, more than tripling his support in two weeks while Romney slipped and Giuliani remained static. Huckabee is now in a close fourth place in South Carolina in the RCP Average, only 6 points off the lead.

Clinton remains well ahead on the Democratic side in South Carolina.