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Democratic candidate for president Senator Barack Obama (D-IL) speaks to the crowd during a campaign stop at the Concord High Schoo gymnasium in Concordl, New Hampshire on January 7, 2008. (UPI Photo/Matthew Healey)

Among 323 Democrat voters in the state, Obama had 35 percent over Sen. Hillary Clinton, D-N.Y., who was at 28 percent. Former Sen. John Edwards, D-N.C., logged 19 percent.

That's a major reversal from a similar poll in November when Clinton led Obama 39 percent-19 percent, the report said.

The broadcaster said it had been unable to reach sufficient Republican voters to "create a reliable estimate" on the New Hampshire primary. From those it did contact, pollsters said Sen. John McCain, R-Ariz., picked up supporters from other candidates and former Massachusetts Gov. Mitt Romney lost support, compared to a November poll. There was no significant change in support for former Arkansas Gov. Mike Huckabee, who won the Iowa caucus last week.

The poll's margin of error was 5 percentage points, the broadcaster said.