WASHINGTON (CNN) -- Sen. Hillary Rodham Clinton, D-New York, remains the frontrunner for the Democratic Party's presidential nomination in 2008, with more than twice the support of any of her potential rivals, a new CNN poll shows.

Support for Sen. John Kerry, D-Massachusetts, dropped 5 percentage points in the past month from 12 percent to 7 percent, according to the nationwide poll of registered Democrats conducted by Opinion Research Corporation over the weekend. Worse news for Kerry is that a majority of those polled said they do not want to see the 2004 Democratic presidential nominee win the party's nomination in 2008.

Kerry, in an interview on Fox News Sunday, said he would make a decision in early 2007 on whether to run for president again. The Massachusetts senator also insisted that his "botched joke" about President Bush's plan for Iraq right before the midterm elections will not influence his decision on whether to make a second bid for his party's nomination.

"The parlor game of who's up, who's down, today or tomorrow, if I listened to that stuff, I would never have won the nomination," Kerry said.

New York Sen. Hillary Rodham Clinton 33%
Illinois Sen. Barack Obama 15%
Former North Carolina Sen. John Edwards 14%
Former Vice President Al Gore 14%
Massachusetts Sen. John Kerry 7%
Retired Gen. Wesley Clark 4%
Delaware Sen. Joe Biden 3%
New Mexico Gov. Bill Richardson 3%
Indiana Sen. Evan Bayh 2%
Iowa Gov. Tom Vilsack 1%

Interviews with 530 registered voters who describe themselves as Democrats or Independents who lean to the Democratic Party conducted by telephone on November 17-19 by Opinion Research Corporation.
Sampling error: +/-5% pts

Full results