WASHINGTON - Sen. Joe Biden tried on Saturday to stem the damage from the botched launch of his presidential campaign as underdog candidates in the Democratic field looked to gain momentum from the party faithful.

The Democratic National Committee wrapped up a three-day meeting that featured speeches from all 10 candidates already in the race or considering a bid. The front-runners all appeared Friday before a packed ballroom.

The crowd thinned to roughly half on Saturday, but those in attendance were no less enthusiastic. New Mexico Gov. Bill Richardson stirred them by calling for a primary without negative campaigning and saying he would bring troops home from Iraq by the end of the year.

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