This is not necessarily true, and if this reflects the caliber of their research, this case is going nowhere and poses a risk of tainting the Obama question too.
Both of George Romney's parents were US citizens, born in Utah. Thus Mitt Romney got his US citizenship from them at birth, and would have regardless of where in the world he was born, and had no need of US naturalization, any more than John McCain did.
Even the First Congress asserted that children born abroad to US Citizen parents are "natural born."
So why did McCain have to have a resolution drawn up by the senate stating he was born to two citizen parents? According to you, it didn’t matter where George was born because he was born to two U.S. parents regardless.
Your initial assertion, George's parents were citizens so George is a citizen was correct. Your claim that “...Children born abroad to US Citizen parents are “natural born” is not. The “Naturalization Act of 1790” was, first, a “Naturalization Act” - Presidents must be “Natural” and not “Naturalized Citizens.” Second, the Act from the 1st Congress was completely erased, and was certainly not constitutionally correct - Congress cannot interpret or modify a decision of the Supreme Court, except by Amendment. The Act from 1795 that replaced the first act (both Acts signed by President George Washington, who approved of the wording in Article II Section 1, and whose most respected source for the Law of Nations was Vattel, clearly makes the children of citizen parents born overseas “citizens.” There is no mention in the 1795 Act of natural born citizens, just as there is no mention of the term in all of US Code, nor in the 14th Amendment, though the author of the 14th Amendment, John Bingham, clearly asserted that the Vattel common law was unquestioned during his two addresses to the House
Obots have been throwing in the 1790 Act so often it is no surprise that even people who read are confused. Even Ted Olson and Larry Tribe, in their letter to help insure that McCain, patently ineligible, would be presumed to have been cleared by SR511 by people who didn't know that “resolutions” are not actionable, tried to confuse people by implying that the 1790 Act had not been immediately “erased. Tribe and Olson, Tribe, Obama's constitutional law professor at Harvard, and on Obama's elction committee, never mentions the 1795 erasure and restatement of Congress' declaration that foreign-born children of citizens are citizens too.”
Some think that Washington may have signed the 1790 Act, which was retroactive, because the children of some diplomats or military were born overseas during the revolution, while the father was fighting. But it was Washington who ordered that no one who was not a citizen be granted a field officer's commission, since, as important as the contributions of foreign officers were, their allegiance was to another nation, and to a monarch. John Jay, in the first four Federalist Papers, and the author of the note to Washington reminding him to require that the president be a natural born citizen, warned of the dangers of foreign intrigue. It could have been a mistake? And while judicial review was a common-law principle, at had not yet been addressed as positive law (Vattel clearly enunciates the principle of juridical review).
While the left will deploy their usual misdirectors, Leo Donofrio has made clarity of the issue of natural born citizenship, an issue which many attorneys on the left understood correctly, because they went to such measures as to edit at least twenty six Supreme Court decisions to hide the citations to Minor v. Happersett accessible to those who use the Internet to find legal decisions - see Dianna Cotter's revelation of Justiagate or Donofrio's blog. The Chief Justice, Morrison Waite, erases any question of what is a natural born citizen, and the case was based upon Elizabeth Minor's having been born a natural born citizen, turning common-law, the source for virtually every definition in the Constitution, into "decided law," or “stare decisis.”
From Minor v. Happersett:
At common-law, with the nomenclature of which the framers of the Constitution were familiar, it was never doubted that all children born in a country of parents who were its citizens became themselves, upon their birth, citizens also. These were natives, or natural-born citizens,...
Mitt is a natural born citizen, much as I might prefer Alan West or Sarah Palin or Michelle Bachmann, or even, with a few misgivings, Rick Santorum or Rick Perry, or Newt. We must and will unite behind one of them.