I remember reading a long time ago that many people in our government have duel Israeli/USA citizenship. I just did a google search for "USA cabinet members Israeli citizens" and there seem to be a lot of results; one of the first is https://www.facebook.com/notes/we-are-all-vittorio-arrigoni/... - about 1/3 of the way down the page is a long list of people in power who likely have dual citizenship.

I am not sure why this would even be legal. How can one person be loyal to two countries?