CHICAGO _ The U.S. Supreme Court will consider Friday whether to take up a lawsuit challenging President-elect Barack Obama's U.S. citizenship, a continuation of a New Jersey case embraced by some opponents of Obama's election.

The meeting of justices will coincide with a vigil by the filer's supporters in Washington on the steps of the nation's highest court.

The suit originally sought to stay the election, and was filed on behalf of Leo Donofrio against New Jersey Secretary of State Nina Mitchell Wells.

Legal experts say the appeal has little chance of succeeding, despite appearing on the court's schedule. Legal records show it is only the tip of an iceberg of nationwide efforts seeking to derail Obama's election over accusations that he either wasn't born a U.S. citizen or that he later renounced his citizenship in Indonesia.

The Obama campaign has maintained that he was born in Hawaii, has an authentic birth certificate, and is a "natural-born" U.S. citizen. Hawaiian officials agree.

Among those filing lawsuits is Alan Keyes, who lost to Obama in the 2004 Illinois Senate race. Keyes' suit seeks to halt certification of votes in California. Another suit by a Kentucky man seeks to have a federal judge review Obama's original birth certificate, which Hawaiian officials say is locked in a state vault.

Other suits have been filed by Andy Martin, whose case was dismissed in Hawaii, and by an Ohio man whose case also was dismissed. Five more suits,