From the Morning Memo:

A trio of labor groups are making a push to aid Democrats in winning control of the state Senate this November, targeting five individual districts on Long Island and in upstate New York through their independent expenditure committees.

The effort involves independent expenditures tied to the New York State United Teachers union, 32BJ SEIU and the Communications Workers of America and weeks of TV and digital advertising as well as direct mail to voters.

Republicans hold a narrow majority in the state Senate with the aid of Brooklyn Democratic Sen. Simcha Felder, but with Democrats hoping a wave year will sweep down ballot candidates into office, the chamber is very much considered in play this year.

On Long Island, the unity campaign will be involved in the districts represented by Republican Sens. Carl Marcellino and Elaine Phillips as well as the district being defended by Sen. John Brooks, a Democrat considered the most vulnerable

In the Hudson Valley, the race between Democratic Assemblyman James Skoufis and Republican Tom Basile for the district being vacated by retiring Sen. Bill Larkin, is part of the effort, as is the seat of GOP Sen. John DeFrancisco in the Syracuse area

The groups outlined their strategy, to an unusually public degree, on a website that details the individual characteristics of each district and tailor-made media strategies for each.

In the DeFrancisco district, for example, the effort will involve a five-piece mail program with broadcast TV ads in the race between Democrat John Mannion and Republican Bob Antonacci.

In the 5th Senate district, the effort began by tying incumbent Marcellino to President Donald Trump through TV ads. He faces Democrat Jim Gaughran.

New Yorkers Together, the super PAC tied to the Communications Workers, this week began a $59,000 digital ad campaign in the district opposing Marcellino’s re-election, records show.

Labor unions have proven to be effective so far this election cycle, aiding challengers to Democratic lawmakers who had challenged the former members of the Independent Democratic Conference in the Senate during this month’s state primary. Labor-backed efforts in the Bronx and Queens, in particular, played key roles in those contests.