From the Morning Memo:

Election Day next month is shaping up to be a comparatively sleepy affair statewide, as ballot propositions for constitutional amendments, along with whether to hold a constitutional constitutional, the only issues all New Yorkers will face when they head to booth.

In most upstate cities, the mayor’s race is a cakewalk for the incumbent Democrat. The same goes for New York City.

But in the suburbs, bellwethers of New York’s political sentiment, two hotly contested races are underway for county executive that could shape 2018’s electoral landscape for the state.

In Westchester County, Democratic state Sen. George Latimer is challenging Republican incumbent Rob Astorino, the 2014 GOP candidate for governor who is believed to be considering a second run against Gov. Andrew Cuomo next year.

In Nassau County, an open seat for county executive is being fought over by former Sen. Jack Martins, a Republican, and Democratic County Legislator Laura Curran.

Both suburban New York City counties — traditional havens for Republican votes — have become more Democratic in recent years. But Republicans have hung on in the county executive posts, underscoring the low Democratic turnout in odd numbered years and the GOP’s drumbeat of a key local suburban issue: Property taxes.

Democrats have in part sought to link Astorino to President Donald Trump, hoping to bring out Democratic voters in an off-cycle year and testing liberal opposition to GOP power in Washington.

“If Rob Astorino were to lose that election, that would be seismic,” said Morgan Hook of SKDKnickerbocker on Capital Tonight’s Insiders on Tuesday.

Still, it’s possible issues for voters there will come down to the more traditional concerns of taxes and spending.

“What they vote on in that county is historically property taxes,” said Dave Catalfamo, a former spokesman for Gov. George Pataki who is now at Park Strategies. “The question is whether there’s going to be enough energy from those voters to counter whatever’s coming from the left energized by what’s going on in Washington.”

With a month to go, the Westchester County race has proved to be particularly personal, with Astorino blasting Latimer for taxes owned on a home owned by his wife stemming from estate issues following the death of his mother-in-law.

Astorino recently picked up endorsements from 20 labor unions in the area, including the Building and Construction Trades Council.

Latimer, meanwhile, has started airing a TV ad painting Astorino has someone doling out patronage jobs and who broke his promise to rein in taxes.

Curran has sought to link Martins to part of the county political structure’s corrupt bloodstream, including incumbent Republican Ed Mangano and former Senate Majority Leader Dean Skelos.

For now, Martins has sought to inoculate himself against those claims, quickly coming out of the gate with an anti-corruption platform.