“no love lost between Puerto Ricans and Cubans”
I think you’re correct, but you may be too charitable. I consulted several of my Cuban friends on this issue yesterday. All of them told me, without any hesitation, that Cubans detest Puerto Ricans and that the feeling is mutual. I know this is just anecdotal, but it may show that Rubio will not get any support from PRs just because he’s Cuban.
Back in the early 90's I was working in corrections and we had a wing of Cuban inmates, one day I asked a guard who was Puerto Rican what they were saying, and his response was "Do I look like Dr. Doolittle, that I can talk with the ******* animals?"