Rubio was born in the US, he’s a US citizen. End of story.
NOT! Just like Your President, unless both his parents became US citizens BEFORE his birth, he is not a Natural Born Citizen....therefore just like Obama, He would not be eligable ...
Actually, the birther movement simply states that since Obama has not provided a birth certificate, he has not met the requirements to hold the office of President. Anything else is assuming that he even has one.