Just trying to understand, what do you mean by a "Mexican US Citizen"?
When I read this originally, I was a bit confused why the child would not have been a US citizen as well by merit of being born to a US Citizen...but I think you're saying that the parent received US citizenship after the child was born?
When I read this originally, I was a bit confused why the child would not have been a US citizen as well by merit of being born to a US Citizen...but I think you're saying that the parent received US citizenship after the child was born?