But what about President John Tyler or W.E.B. DuBois? And would you be shocked to learn that Terry Gilliam of Monty Python was originally an American but became an expat and is now 100% British?
OK, this one is cheating just a bit. Former President John Tyler, by accepting a post as representative of the Confederacy, basically renounced his U.S. citizenship (and technically was the only President to die on “foreign” soil when he passed in 1862 in Virginia).