Mr. Robertson has been appealing to disenchanted Democrats to vote for him at the Republican caucuses.

Obama made the announcement in an email that reached out to disenchanted Democrats whom he needs to campaign for him even though they feel he has been insufficiently progressive.

But the fast-growing Internet community was also a phenomenon of liberal enclaves in more conservative states, where disenchanted Democrats, mostly baby boomers, had long felt outnumbered and abandoned.

Gov. Bill Clinton returned to the campaign trail today to restake his claim to the votes of the disenchanted Democrats who went Republican in the 1980's.

But even here, among the right's despised liberal cultural elite, some disenchanted Democrats are already lusting for the Clinton restoration in 2008.

He founded the webpage VotePact.org which encourages disenchanted Democrats to pair up with disenchanted Republicans and both vote the third parties and independent candidates.

His challenge is to appeal to both middle-class suburban independents and disenchanted blue-collar Democrats.

Mr. Bradley's campaign is also reaching out to disenchanted Democrats, peace advocates, students, independents and moderate Republicans, who are allowed to change their registration on caucus day.

They are calculated to appeal to his core constituency of disenchanted Democrats who have proved in the past that the attacks on him only stoke their ardor.

The Liberal Party nominee, he bills hmself as a fusion candidate; he is wooing disenchanted Democrats but also must capture conservative Republicans.