Nader lashes out at Democrats, defends candidacy - CNN.com
WASHINGTON (CNN) -- Ralph Nader lashed out at the Democratic presidential candidates Monday after they said he could hurt their chances of taking back the White House.
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Many Democrats fear that Nader, who turns 74 this week, could draw votes away from whoever gets the party's nomination, potentially helping presumptive Republican nominee Sen. John McCain win the White House in November.
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"He thought that there was no difference between Al Gore and George Bush, and, eight years later, I think people realize that Ralph did not know what he was talking about," Obama said at a town hall meeting Sunday.
Clinton also said Nader "is responsible for George W. Bush" and called his candidacy "regrettable" during a Boston, Massachusetts, fundraiser Sunday night.
"We can't assume that we're going be able to win overwhelmingly," she said. "We're going to have to fight for every state, and Ralph Nader is a problem."
Earlier, Clinton said Nader -- who says environmental policies are central to his platform -- "prevented Al Gore from being the greenest president we could have had."