The Republican-controlled State Senate is starting election season very early, mailing constituent flyers in at least two key suburban districts: the 5th, represented by Carl Marcellino, and the 40th, where Terrence Murphy sits.

This is as early as outreach has ever begun for an election that is 11 months away. It suggests high anxiety for the GOP, which cannot afford to lose a seat from its fragile governing majority of 31 Republicans plus Simcha Felder, a Democrat who caucuses with Republicans....

With the Washington tax plan likely to pummel upper-middle-class suburbanites, Murphy in Westchester and Marcellino on Long Island’s Gold Coast might be particularly vulnerable to angry voters who could vent against the party right down the ballot.

Democrat James Gaughran is said to be gearing up for a 2018 rematch with Marcellino, who first won election in 1995. In 2016, Marcellino was re-elected with just 50.6 percent of the vote.

GOP Senate spokesman Scott Reif said he doesn’t know whether Marcellino would actually seek another term in 2018.