Get educated on Vattel? Did he have any other definitions for citizenship for a person other than Natural Born and Naturalized that I am not aware of? Not from my understanding. With those two choices also in the Constitution, Rubio falls under NB.
BTW, was there a Constitutional crisis for Chester A Arther when he was President? His father was born in Ireland. Folks had a very clear idea of the Constitution in those days since it was less that 100 years old. I think I will take their advice on the definition of Natural Born.
As a matter of fact, there was. Arthur concealed and lied about the fact that his father was not a citizen when he was born, even going so far as to have all his personal documents destroyed. The issue of his ineligibility was contentious in politics and the newspapers throughout his time as VP, then as president, and after he left office.
Arthur was smeared by his political opponents, the same as Jefferson.
Open one of Vattel’s numerous editions, read it your self. You will learn Vattel is the Constitution.