The coalition created out of the Working Families Party convention to flip the state Senate into Democratic hands is quickly putting together its list of seats to target and/or protect, and apparently one of just two remaining Republican senators representing New York City is in its crosshairs.

According to a source familiar with the coalition’s plans, Sen. Marty Golden, of Brooklyn, will be a top target this fall. Democratic NYC Councilman Vincent Gentile’s name is being floated as a potential challenger to Golden, who is himself a former councilman. Golden, who worked for the NYPD for 10 years before launching his politial career, was first elected to the Senate in 2002.

There’s a long and not terribly friendly history between Gentile and Golden.

Gentile once held Golden’s seat, which he won in 1996, capitalizing on internal divisions in the Republican party to win a three-way race in what was then SD-23. Golden defeated Gentile in 2002 with the help of nearly $4 million from the Senate GOP, and Gentile, who spent about half a million dollars on his Senate campaign, subsequently won a special election for the NYC Council seat Golden vacated to move up to the Senate.

Effectively, the two swapped jobs.

Today, Golden’s Brooklyn district (the 22nd SD) has an overwhelming Democratic enrollment edge – 78,165 to 33,343 Republicans, according to the state Board of Elections. Yet the Democrats have so far been unable to unseat the outspoken and often colorful senator from his seat.

Two years ago, Golden’s Democratic challenger, Andrew Gounardes, lost to Golden, 57 percent to 43 percent, but performed surprisingly well in Golden’s home turf of Bay Ridge. Since then, however, Gounardes has accepted a job with Brooklyn Borough President Eric Adams (a former Senate Democrat), and he would have to give up the job if he wanted to pursue a re-match run against the GOP senator.

Also worth noting: Golden was a close ally of former NYC Mayor Mike Bloomberg, who used his considerable wealth to bolster the Senate GOP’s coffers while he was in office. Now that Bloomberg is gone, the Republicans have lost their most prominent individual contributor.

Senate GOP spokesman Scott Reif emailed the following statement in response to the news that Golden is yet again a target for the Democrats:

“Another year, another boast from Senate Democrats about this being the year they’re going to take out Marty Golden. Excuse us if we’ve heard this one before. Regardless of who the Democrats decide to put up this time, Senator Golden is going to be reelected because he keeps delivering for the hardworking residents of Brooklyn.”

UPDATE: The coalition source called back in response to Reif’s comment, noting that there are thousands of union members living in Golden’s district whose organizations have never before been uited against him, and prepared to urge them all to work – and vote – against him. Also, according to this source, some $1 million has been earmarked by the coalition to assist Gentile (or whoever the Democratic opponent ends up being) in his quest to unseat Golden.