I think the answer to the first clue may be CAUCASOID. It fits and means relating to caucasians, ie people from Europe, Asia and parts of Africa. In modern times, there are those who use it as a term for white people in America, but it has racial overtones.
A caucus is an American political group, but I don't see why the u becomes an a in the answer. The OID at the end is an anagram of "do I" being bothered about.