It seems like the GOP have things all confused:
A Kenyan man marries an American woman and has a baby in the USA...GOP not sure the baby is legally a US citizen.
A foreign couple are in the USA (nevermind how), but if they have baby in the USA, the GOP not sure if the baby should legally be a citizen.
An American woman marries a Cuban man and has baby in Canada...GOP says the baby is a natural born American, US citizenship not in question and he can run for President.