Why did they not find this out in 2008?

First of all, I don't think any of the leaders of the 'Birther' movement really believed for a second that Obama wasn't born in the US. Or that he's a Muslim, or that he belongs to a radical anti-American church, or any of that stuff.

But when Obama began leading Hillary in the polls, when it look like he was the most likely Democratic nominee, the Republican campaign experts tried to find ways to make him look unamerican. They wanted people to see him as 'not like us'. They figured this was the easiest way to attack a black guy. Not Our Kind. They probably had demographic studies and focus groups and all that stuff to back up this decision.

McCain was a candidate. They wanted him to appear 'above the fray'. They wanted him to look judicious and reasonable and thoughtful, not like some angry crackpot (though he sure looked like one afterwards, didn't he? Listen to him today talk about DADT and he really sounds like just a grumpy old man!) So it was planned from the start that McCain wouldn't say anything about Obama being a Muslim or a Communist or foreign-born. Those battles would be fought at a lower level, in the media.

Obama was big news in mid-2008. As you could imagine, a black guy, a professor from Harvard, leading in a primary race. -Anything- announced about him was immediately on the front page. So the Republican strategy was to fill up the front page with silly accusations rather than actual Obama information.

They've honed this strategy for years. Remember all the crimes they accused Clinton of during the 1992 campaign and then all through is presidency? Some Republicans even today believe he's a murderer, a rapist, that he headed a drug operation, that he sold US nuclear secrets to the Chinese. They did this simply by making the accusations over and over until the media picked them up, and making new accusations all the time to add to the growing list, and repeating all the accusations long after they were discredited. This is a time-honored Republican tradition. They treated Jimmy Carter the same way.

In fact one of the reasons Sarah Palin was picked as McCain's running mate was to get Obama off the front page. Her announcement was even strategically timed, the morning after Obama's acceptance speech to a packed football stadium. And it worked, kind of. Palin became THE story. For a couple of weeks anyway, until she began opening her mouth and embarrassing herself.

Citizenship comes based on if you were born in the USA or if either of your parents were US citizens. Henry Kissinger and Madeline Albright could not become president because they were immigrants.

Idiots think President Obama's mother, an American citizen, knew her son would grow up one day and become President of the U.S. and because that is the only position in the world that requires a person to be a natural born citizen she hatched an elaborate scheme to make it look like he was born in Hawaii.

Even if jus sanguinis citizenship does not apply for some reason all she would have had to do was simply apply for Barrack Obama's citizenship. As the child of a U.S. citizen it would have been granted.

the same reason why mccain had to provide his birth certificate to the supreme court an obama did not, you see mccain is a traitor, he is in on the whole thing. he an hillary took a dive to help obama get elected,

You need to ask the hillary clinton supporters who started the birther movement during the 2008 democratic party primaries.

You say that there is "no way" a child could enter the U.S. without a passport?...well then I guess we don't need the "dream act" do we?