I was referring to the "Effect of Tax Treaties" section within <a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/p519.pdf">https://www.irs.gov/pub/irs-pdf/p519.pdf</a>, which says,
"If you are treated
as a resident of a foreign country under a tax
treaty, you are treated as a nonresident alien in
figuring your U.S. income tax..."
... which is why I think I may not be able to exercise the choice of "Resident Alien" while filing my US returns.
