You didn’t read the following. You should. It would make you sound a little intelligent.
Mitt Romney’s Father Was A Mexican Citizen When Mitt Was Born.
http://politicalvelcraft.org/2012/01/28/mitt-romneys-father-was-a-mexican-citizen-when-mitt-was-born/
I will read it. I will be surprised if it tells me anything useful.
Mitt Romney’s Father Was A Mexican Citizen When Mitt Was Born.
Not as far as i've been able to determine. By United States law, he was an American citizen. Mexican law is irrelevant.