public campaign demanding proof of the president's birth place. he says because mr. obama's father was a kenyan citizen, he might be a dual citizen and not what the founders had in mind as natural born american. he goes even further by questioning whether mr. obama was adopted by his indonesian stepfather which puts further down on his citizenship. cnn has found no evidence of either assertion or anything that would disqualify president obama from his office. you get this and you want other things to nail the president with. other documents. it's never going to end. >> right. and that's an accusation i can certainly understand. i can certainly appreciate. the thing i would point out is we are dealing with an issue of pre-eminent importance. we're dealing with the eligibility of not just a candidate for the president but now somebody who has been in the office for two years. >> the doubters aren't quieted