NEW YORK (MarketWatch) - With just two days to go before New Hampshire's primary, two polls of voters in the state have Barack Obama and Hillary Clinton in a virtual dead heat, while John McCain appears to be edging ahead of Mitt Romney.

Iowa caucus winner Obama and Clinton are backed by 33% of Democratic primary voters in the poll conducted by CNN and WMUR by the University of New Hampshire.

A separate survey conducted for the Concord Monitor by Research 2000 had 34% of likely Democratic primary voters opting for Sen. Obama, D-IL, and 33% favoring Sen. Clinton, D-N.Y.

Former North Carolina Senator John Edwards netted 20% in the CNN/WMUR poll, while the Concord Monitor poll had Edwards garnering 23% of likely Democratic voters.

On the GOP side, Sen. McCain was backed by 35% of likely Republican voters, while Romney, the former governor of Massachusetts, was backed by 29% in the Concord Monitor survey, with Iowa caucus winner Mike Huckabee selected by 13%, and former New York City Mayor Rudy Giuliani at 8%.

The CNN/WMUR survey offered similar results, with 33% backing Sen. McCain of Arizona, and 27% supporting Romney. Huckabee was backed by 11%, with the former Arkansas governor trailing former mayor Giuliani, who garnered 14%.

Sunday's televised news shows featured some, but not all, of the front-runners, with Edwards telling ABC that he's in the race for the long haul. "I am in this through the convention and to the White House," Edwards told ABC's 'This Week with George Stephanopoulos.'

Appearing on the same show after Edwards, Huckabee predicted he would do "better-than-expected in New Hampshire," and win upcoming contests in South Carolina and Florida.

On NBC's 'Meet the Press,' McCain reiterated past statements that he would not run as an independent should his latest bid for his party's nomination falter.