The constitution defines citizen ... A1,S8 is a person born a subject/citizen of a foreign nation, A2 is a person born a US citizen and noting else. Get the picture?
No, the Constitution does not define citizen. In fact, the Constitution only has 4 instances of the word “citizen” and none of those instances is a definition provided.
Article 1 section 2 - senator qualifications
Article 2 section 1 - president qualifications
Article 3 section 2 - jury trials (modified by 11th Amendment)
Article 4 section 2 - privileges and immunities
Further, the Bill of Rights does not even mention citizen once. You have to get to the 14th amendment which reestablishes the policy of jus soli as citizenship for all who are born on US soil. And that is literally referred to as a “justification” not a definition. Now ask yourself why did an amendment have to be used to restore jus soli? Well Congress, under it’s authority of Article 1 section 8 had defined citizens to not include slaves.
Amendments 15, 19, 24, and 26 also have the word citizen but again none of them define citizen.
So how is it that you believe the Constitution defines citizen?
No, Article 1 Section 8 grants to congress the UNLIMITED authority to define ALL rules of naturalization. That means who is an alien, who is a citizen, who has to be naturalized and who does not.
In fact, the very first Congress in the Naturalization act of 1790 did specifically reference natural born citizens and SPECIFICLY applied the term to those born beyond the shores of the US to citizen parents.
Now that naturalization act has been repealed and replaced by another act. And that one was repealed and replaced and so on and so forth until we get to the current law as expressed in USC Title 8 section 1401 - Nationals and citizens of United States at birth