Because not everyone agrees with the definition of natural born citizen you pieced together in 2008.
I think talking heads and corrupt judges will make sure he is an NBC by hook or by crook. The Constitution rarely if ever matters to these fools.
the definition isn’t unclear in the least.
a natural born citizen is someone born in the country, of two citizens at the time of their birth.
if only one parent is a citizen, then the person is a normal citizen... naturalized... not a natural born citizen
this concept was old when the Constitution was written. you’re lack of understanding is yours, not some murkiness in the definition