Simple to understand: Just because a foreign nation also gives someone citizenship does not mean they can control US citizenship. In other words, just because Obama’s dad was British by means of being a Keynan, and they granted Obama British citizenship regardless of where he is born or to whom, does not mean the Brits cancel out any citizenship Obama may have been granted by any other nation. This means having a British citizenship is useless information regarding Obama’s birth in Kenya or the US.
I’m not saying the British citizenship voids the US citizenship. What it does is it divides his allegiance which our founding fathers did not want our President to have. Just my thought on the matter!
That is not Defronio’s rationale. The mother’s American citizenship “does not mitigate” the father’s status as British subject and citizen, regardless of birthplace. One possible interpretation is that neither parent can have a loyalty to any other foreign nation, and that is what makes Obama not a citizen. You can see it’s a fine line, and that’s why it would be fascinating for the court to take up.