Obama, McCain expand lead in New Hampshire

By John Whitesides, Political Correspondent

MANCHESTER, New Hampshire (Reuters) - Democrat Barack Obama expanded his lead over Hillary Clinton in New Hampshire to 13 points as voting began in the state's critical presidential primary, according to a Reuters/C-SPAN/Zogby poll released on Tuesday.

Republican Sen. John McCain of Arizona also widened his advantage over former Massachusetts Gov. Mitt Romney, taking a 36 percent to 27 percent edge after months of hard campaigning in the state.

Obama continued to feed on the momentum from his performance in Iowa last week, when he and Republican Mike Huckabee scored breakthrough wins that left Clinton and Romney reeling.

Obama, a senator from Illinois bidding to make history as the first black U.S. president, led the one-time Democratic front-runner 42 percent to 29 percent. Former North Carolina Sen. John Edwards was third with 17 percent.

"Obama is still on a roll and not slowing down. He had another big day," pollster John Zogby said.

Obama led Clinton in all categories of voters except women and voters over the age of 65, and was pulling away from the New York senator among base Democratic voters.

"This is the same thing he did in the closing hours in Iowa," Zogby said of Obama.

The rolling poll of 862 likely Democratic voters and 859 likely Republican voters was taken Saturday through Monday. It has a margin of error of 3.4 percentage points.