>My understanding is that US citizens have to “forsake all others.”<
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I also heard that the US accepts dual American/Israeli citizenship. How else can American Jews fight for Israel and not lose their US citizenship?
People keep bringing up the issue of citizenship. I don’t think that is the main issue. Obama is a citizen unless he renounced his citizenship after the age of eighteen, but we don’t have any evidence ATM that he did. The question is how does an adoption and citizenship in a foreign country affect one’s natural born status? This is not 100% clear.