[rahbert]

the pundit is incorrect in one important fact:

Regardless of whether he was adopted by an Indonesian,
his US citizenship would be intact until renounced
before a US Consul and he would have had to have been
age 18 in order to renounce. The State Dept would have
a copy of the Renunciation of US Citizenship on file.

Since he was a minor, it is impossible for him to have renounced at this time. The adoption is therefore meaningless as far as his US nationality is concerned.

[Askwhy5times]

The question of how this affects his natural born status is not as clear cut as you indicate. I don't claim to have the answer. There is a great analysis at this site. Conservative Brawler:

[Extremely Extreme Extremist]

Indonesia prohibits dual-citizenship.
After he was adopted, he became an Indonesian citizen.

[OldDeckHand]

"Since he was a minor, it is impossible for him to have renounced at this time. The adoption is therefore meaningless as far as his US nationality is concerned."

Absolutely correct. There are far too many people that think someone's US citizenship can be negated without due process. When in fact, it's a very complicated and detailed process to renounce your US citizenship, by design. Obama could have been adopted by Martians, and it wouldn't have any effect on his eligibility to be president.