I see you have only been here a little over a year. Why don't you click on the information about the folks who post things you question? If they have been here longer than you, maybe do some google work and see if maybe they know something you don't. I suggest you start with the search "dual citizens in US government."
Happy hunting, and may the truth set your mind free! These folks would REALLY appreciate you knowing, and spreading, the facts.
This is the article that got my posting privileges revoked: