DC for sure would be a problem, but Puerto Rico consistently votes Republican.
The strongest proof is in the Republicans who Puerto Ricans are electing to office. In addition to Gonzalez-Colon, the Puerto Ricans recently elected Luis Fortuno as governor from 2009-13, Senate President Thomas Rivera Schatz, and House Speaker Carlos “Johnny” Mendez, among others.
You can be Caucasian Hispanic. They're from Spain after all, so they're all just Caucasian Europeans. The only reason a lot of the Hispanics in the Americas look like they're not Caucasian is because they interbred with the natives and have a lot of Aztec/Inca etc. in their blood.
I'm confused. I didn't know what Amici Curiae means so I looked it up and the definition is "Someone who is not a party to the case but is giving information"