I merged information about the birthplace of the 13m registered voters in Florida with precinct results in the 2016 General Election. The following figure reveals the two party vote for Trump and Clinton in those Florida precincts that had at least 100 Puerto Rican-born registered voters who voted in the 2016 General Election. Each of the precincts’ voters were at least 50% Hispanic, and at least 1/5 of those Hispanics who voted were Puerto Rican-born. In other words, these are about as Puerto Rican of precincts in Florida as it gets.
For example, in these majority-Hispanic voter precincts, in which, say (on the X-Axis), 30% of Hispanics who voted were Puerto Rican-born (and that have at least 100 PR-born voters), Trump won only 30% of the vote, on average. He did very poorly in all of the predominantly Puerto Rican precincts.
Does this mean that Republicans are in trouble in FL if the exodus from PR to the mainland happens? Puerto Ricans, certainly compared with other Hispanic groups in Florida, have weak voter turnout. Of the more than 180k PR-born voters in my database, only 112k of them voted in 2016 (62%). That’s much lower turnout rate than, say, Cuban-born voters in FL. In 2016, 242k of the 325k Cuban-born naturalized citizens in my database turned out; that’s roughly 75% turnout.
ElectionSmith 
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