Weren’t his parents born elswhere? (not citizens at the time of his birth - exact same situation as Obama, if Obama had not been born in Kenya)
The ONLY issue with respect to Obama that might have any merit is whether he was actually born in Hawaii, or if he was born in Kenya as some claim. If Obama was born in Hawaii (which has not been established to the satisfaction of many Conservatives), then he would be eligible to be POTUS, period. The fact that one of his parents was a British citizen bears no weight on eligibility, if he was indeed born in Hawaii.
Uhh...not to defend Obama, but his mother was born in Kansas. Accuracy is a good thing.