Unlike Obama, there is no question that McCain is a citizen.
There is plenty of question as to whether the is constitutionally qualified.
When the Founding Fathers wrote the Constitution, they were consciously trying to avoid jus sanguinis as Britain used this very doctrine to assert that anyone born anywhere of British parents is a British subject, and could therefore legally be pressed into the service of the Crown.
Just exactly how many generations of foreign born American ancestor blood do you think your decedents would owe to this this country?
Are you sure?
I don't see that referenced in the proceedings, yet concern over "foreign influence" in American politics is mentioned along with "natural-born"...note John Jay's letter to George Washington, during the (Philadelphia)Constitutional Convention of 1787:
"Permit me to hint, whether it would be wise and seasonable to provide a strong check to the admission of Foreigners into the administration of our national Government; and to declare expressly that the Commander in Chief of the American army shall not be given to nor devolve on, any but a natural born Citizen."
How do you square this claim with the fact that, in 1790, Congress (which still inclided many of the FF) passed a law which stated:
"And the children of citizens of the United States that may be born beyond sea, or outside the limits of the United States, shall be considered as natural born citizens."