Sen. John Kerry of Massachusetts (search) and former Vermont Gov. Howard Dean (search) lead the field among Democratic presidential candidates in New Hampshire, according to the latest poll of likely voters in the state.

Kerry was at 25 percent while Dean was at 22 percent in the Zogby (search) poll released Sunday.

Kerry has been slightly ahead of Dean in recent polls, while they were statistically tied in polls a few months ago.

The poll of 600 likely voters taken June 4-7 has an error margin of plus or minus 4 percentage points. That means Kerry and Dean are statistically tied for the lead.

About one-third of those surveyed said they are not familiar with Dean, while one in 10 said that about Kerry.

Sen. Joe Lieberman of Connecticut was at 10 percent, while Rep. Dick Gephardt of Missouri was at 7 percent.

Sen. John Edwards of North Carolina and Rep. Dennis Kucinich of Ohio were at 2 percent. Sen. Bob Graham of Florida, former Sen. Carol Moseley Braun of Illinois and Al Sharpton of New York were all at 1 percent or less.

About one-fourth of the voters polled, 27 percent, said they are undecided.

New Hampshire will hold the nation's first presidential primary in late January, about a week after Iowa's leadoff caucuses.