Read other letters about this article
I just gave this some thought, and outside of tradition, there is absolutely no reason to have a primary in some "commonwealth" or territory whose citizens (while technically American) cannot vote in the general election. This goes for Guam and the Virgin Islands. At least, Democrats abroad, who get delegates can vote as residents of the state they may technically still live in.
I guess, there has never been such a close race, but for Puerto Rico to have so many delegates (more than many states and D.C.) is absurd. I read that P.R. actually has two completely independent political parties that are really what residents identify with. Obviously, the former first lady would have an advantage in a US possession far away from normal politics. But, more importantly, iot doesn't matter at all.