Personally, at first I thought it was untrue that there's only one person of color in government. Then I remembered that Canadians (and Europeans) use the word "government" differently from Americans. I was thinking of Congress, which of course has more than one person of color; you were thinking of the executive branch.

Also, I know several people who hold both U.S. and non-U.S. passports. The U.S. doesn't acknowledge dual citizenship, in that they consider U.S. citizens to be U.S. citizens regardless of what other passports they hold -- but in some circumstances, at least, it is quite possible to hold dual citizenship. (My sister will become a dual citizen next week, and I probably will within the next year.)