U.S. Citizenship -- Yes

If you were born in the U.S., or if either of your parents were U.S. citizens at the time of your birth, you may have a claim to U.S. citizenship. You should investigate this possibility further before proceeding.  All U.S. citizens must enter the United States on a U.S. passport, regardless of any other citizenship claims.  If you believe you may have a valid claim to U.S citizenship, please contact the American Institute in Taiwan’s American Citizen Services section.

If you need to investigate further your possible citizenship, you should not attempt to travel to the U.S. as a non-U.S. citizen.