Catholic swing driven by wedge issues I'd guess. Don't see a trend at all.
That's funny that the Catholics are turning right about now, cuz Rhode Island historically, since the time it was a small colony was known for being a safe haven when Catholics weren't persecuted for not having Protestant beliefs. Considering traditionally Protestants prefer Republicans and Catholics prefer Democrats, it is interestinng to see this change.
As long as people vote on social issues, Catholics will vote for the Republican, that is unless the Democrats turn populist on us.