I now inform you that you are too far from reality.
When the Mexican Revolution broke out in late 1910, Romney's family went to Oakley, Idaho, and finally ending up in Salt Lake City, Utah. (Some would later ask questions about Romney being eligible for the presidency as a "natural-born citizen" when he was born in Mexico.)
Here's a dose of reality for you. George Romney was born in Mexico. He was not eligible to be the President, yet he ran for the office.
Article II, Section 1:
No person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty-five Years, and been fourteen Years a Resident within the United States.