The sooner this is resolved once and for all, the better. The last thing we want is for this to be raised if and when Rubio gets the nomination.
Three types of citizenship are recognized by our government: native born; naturalized; and citizen-by-statute (derived citizenship from parents).
All have equal rights. All can serve in Congress, either as a Representative in the House, or as a Senator in the Senate.
The following link will take you to the government’s own Immigration Service web page describing the three types of citizenship.
Natural born Citizen is NOT a type of statutory citizenship. Natural born is ONLY an eligibility requirement for the U.S. Presidency per Article II, Section 1, clause 5, of the U.S. Constitution, and requires the President to be born in the United States (jus solis) AND of two citizen parents (jus sanguinas).
The definition of natural born Citizen appears in the holding of SCOTUS’s unanimous decision of Minor v. Happersett (1874). Virginia Minor, a suffragette for women's rights, sued to be included as a candidate for U.S. President based on her eligibility under the 14th Amendment to the U.S.Constitution.
SCOTUS rejected her argument and examined her eligibility, concluding that she belonged to the class of citizens who, being born in the U.S. of citizen parents, was a natural born Citizen, and not covered by the 14th Amendment. This is important: the 14th Amendment has to to with native born citizenship NOT natural born citizenship.
This holding in Minor v. Happersett has been used in 25 consequent SCOTUS decisions since 1875.
No one has the RIGHT to be President. The eligibility requirement of Natural Born Citizenship (jus solis + jus sanguinas: born in the U.S. of U.S. citizen parents) must be viewed as a means to prevent split allegiance for any President of the United States.
Just as an afterthought, beware some posters misstating the 14th Amendment arguments. Some here, and out in cyberspace, have purposefully lied about the Wong Kim Ark case.