What significant changes have been made re renunciation of citizenship?
and I should add that he may ALSO have a problem under paragraph (1) of Section 1481(a):
“(1) Obtaining naturalization in a foreign state upon his own application”
I have seen it stated that under Indonesian law, if someone receives Indonesian nationality as a child and wants to maintain it as an adult, then he or she needs to file a submission with the Indonesian government to affirm it prior to becoming 21 years of age. (I don’t know how accurate this statement is.)
If Obama decided to do some such thing prior to turning 21 in order to hang onto his Indonesian nationality then he likely lost his US nationality under paragraph (1), without even taking into account actions he may have taken under paragraph (2) or paragraph (5).
Again, he would have lost his nationality even if no one in the US State Department even knew about it.