Democratic races closing in Iowa, New Hampshire

New polls out today suggest drops in support for Hillary Clinton and tightening races in Iowa and New Hampshire, the first two states to vote in the Democratic nomination race.

In a Zogby survey in Iowa, Clinton leads with 28 percent, just ahead of Barack Obama with 25 percent and John Edwards with 21 percent. In an August Zogby poll, Clinton led with 30 percent, with Edwards at 23 percent and Obama at 19 percent.

The new survey was conducted Tuesday among 502 Democrats likely to attend the Jan. 3 caucus, and has a margin of error of plus or minus 4.5 percentage points.

In a Rasmussen Reports survey in New Hampshire, Clinton leads Obama 34 percent to 24 percent, with Edwards at 15 percent. Clinton's support is the lowest of the election in a Rasmussen poll, the firm said. The survey was the firm's first in the Granite State since the Democratic debate last week during which Clinton's rivals accused her of double-talk.

The survey was conducted Monday among 772 likely Democratic primary voters, and has a margin of error of plus or minus 4 percentage points.