You need to do more research.

From Wikipedia:
Questions were occasionally asked about Romney's eligibility to run for President owing to his birth in Mexico, given the ambiguity in the United States Constitution over the phrase "natural-born citizen".[14][171][174] (Romney departed the race before the matter could be more definitively resolved,[171] although the preponderance of opinion then and since has been that he was eligible.[174][175


>Why is it that George Romney, who was born in Mexico, attempted to run twice for president of the United States, and no one questioned him nor were there any comments about this fact? Oh that is right. He was a Republican. Anything goes when you are a Republican, especially being the wrong end of the horse.