montgomery blair sibley, a disbarred attorney who once represented deborah jeane palfrey (the ""d.c. madam""), sued obama in january 2012, alleging that he is not a natural-born citizen and that his birth certificate is a forgery. a federal judge dismissed sibley's suit on june 6, 2012. in march 2012, sibley also filed his suit with the u.s. supreme court, stating that the district court had been "too slow" in considering his case.