Citizenship is one option.
Have you established yourself as American citizen with us?
No, I don't think that I have.
Can I use my US passport as proof of both being a citizen and my identity?
Yes you can.
Ok, I see what you mean by citizenship. A passport proves that?
Yes, it does.
Do you need to change your name on your Social Security Card?
Not right now, but I might in the future. I am getting married next year.
If I had changed my name what document would I need?
Any unexpired identity document in your new name, as long as we can find in our records your previous identity.
Is a passport ok?
Yes it is.
What if my documentation in my old name has expired?