The state of Hawaii doesn't allow the release of official birth certificates "to persons who do not have a tangible interest in the vital record." But state officials have said they have documents proving that the president was born in Hawaii, and the Honolulu Advertiser and the Star Bulletin each published announcements of Obama's birth in 1961.
In July, a federal judge in Georgia fined Taitz $20,000 for misusing the federal courts to push a political agenda in bringing a lawsuit on behalf of Army Capt. Connie Rhodes, who refused deployment to Iraq because he doesn't believe Obama is a natural born citizen.
A federal appeals court upheld the decision in August, and has gone to the Supreme Court for consideration.
Republican lawmakers have continued to add fuel to the fire over the years.
Earlier this year, Sen. David Vitter, R-La., became the latest to challenge Obama's birthplace, saying at a campaign event that he supported "conservative legal organizations and others who would bring that to court."
In April, Arizona lawmakers introduced a proposal that would force candidates to produce birth certificates to appear on the ballot in 2012, a clear rebuke to Obama's citizenship claim. Taitz said at least 10 other states are considering a similar statute, including Pennsylvania, Georgia and Missouri.
Sarah Palin, a potential 2012 presidential contender, said on a conservative radio talk show late last year that the public was "rightfully still making it an issue."