Rubio was never another citizen before American. The second he popped out of his mama, he was American. And how soon did he get his USA BC? Probably right then, in an American hospital. He has FAR MORE CLAIM to NBC status than Cruz, who was not officially American until age 16.
The only question is, was Rubio an anchor baby, born to an illegal in this country? I don’t think so. I think his mom had a work permit or green card, so she was a legal resident. As long as that is true, that she was legally here, he was NBC and he proved it right after birth if he had a BC right away.
He’s an anchor baby Jim. :-)
His parents were foreign nationals, he inherited their nationality. He could have been a Cuban citizen if he had chosen.