The constitution, when first drafted, said native born in the states were eligible. They changed it to NBC before finishing it.
In Washington's day, Kings and Queens from different countries married and made deals so that their offspring could rule in foreign lands. NBC was perfectly worded to end that kind of foreign influence and incestuous politics. This phrase in the constitution was genius.
We now have a man in office who rightfully has called Kenya his home country. This is recorded on video, in Kenya, while he was violating US law campaigning in a foreign country. Clearly, the constitution is being violated. And we also have Americas first Historian documenting that it is a citizen born of citizens. Obama was not.
Deuteronomy 17:15
be sure to appoint over you a king the LORD your God chooses. He must be from among your fellow Israelites. Do not place a foreigner over you, one who is not an Israelite.