This one is a mystery to me. Trump even won a county there, which no Republican has been able to do since Reagan.
Trump won a county in every New England state aside of Massachusetts.
Sure--- although honestly the whole concept of discussing Presidential election results in detail by County in New England can become an absurd proposition, since really NE county level discussion is frequently a much less fruitful endeavor than comparing cities/townships across the region (Precinct level results are always tough anywhere you go, especially in NE).
That Trump was appealing to many voters in RI, as in most parts of NE, "swing voter types" that might have voted along the following lines: Dukakis/Bush '88, Clinton/Perot '92, Clinton/Perot '96, Gore/W. '04, Obama '08, Obama/Romney '12....
Let's face it--- really we are talking about swings here, and elections aren't just a giant collection of W & Ls like a football game.
Just because all of the EVs in NE have gone Dem since '08, with the exception of ME-02 ('16), doesn't mean that there won't be dramatic swings within given states.
Also, I might note that Trump only bagged only 38.7% of the vote in '16, hardly a definition of the provocative thread title: "Why was RI so close?".... Meanwhile Romney managed to capture an amazing 35.2% in '12, W. 35.2% in '04.
The key question should be where did the 3.5% of voters that hadn't voted Republican in '04 and '12 come from? They didn't just materialize from nowhere overnight, as a result of some random Russian election hacking gig unless that's what you choose to believe (
rhetorical you---and def not shooting darts at you Bandit for realz).
Odds are these are voters that have generally voted Democratic at a Presidential level in the past, but for whatever reason felt that Trump alone was sufficient to change years of voting for Dem Pres candidates at the Pres level.
Now, the other question is why did HRC perform so poorly in RI (54.4% !), but I suspect we already know the multiple answers to that question.
RI isn't anywhere close to voting 'Pub Pres anytime in the near future, and it really looks like most of the Democratic drop-off were Millennials and WWC Bernie supporters voting to the Left as part of an "Anyone but Trump/Clinton Movement".