In the 1977 New York mayoral primary, Mario Cuomo was running against Ed Koch — unmarried and rumored to be gay. Shortly before the vote, posters appeared saying, “Vote for Cuomo, not the homo.”

Cuomo disavowed them, but the culprit was never identified.

Cuomo’s son, Governor Andrew, got the legislature, in the dead of night, to name the new Hudson River Bridge the “Cuomo Bridge,” after his father. (His newsman brother Chris Cuomo has said their dad definitely opposed having things named after him.) But Andrew obviously expected reflected glory from having the Cuomo name on the bridge. (And some voters don’t seem to know one Cuomo from another.)

So the other day — just before Thursday’s gubernatorial primary — Cuomo had a Big Deal ceremony opening the new bridge. Except that it turned out the bridge was not yet actually ready for traffic. Cuomo wasn’t going to let a detail like that stop him from preening and taking credit.

Then it was revealed that his campaign had targeted Jewish voters with a mailed flyer all but accusing his opponent, Cynthia Nixon, of anti-semitism. (Nixon is raising her kids Jewish.) The campaign says it will send out a correction mailing. Which will arrive after the vote.

Cuomo insists he had nothing to do with the despicable mailing. If you believe that, there’s a bridge over the Hudson I’d like to sell you. (I’m not the first with that line.) But it’s funny how Cuomo, the great micro-manager, never seems to know anything about any of the nasty stuff in his administration that gets exposed (like bribe-taking by his “third brother” Percoco.)

Cuomo is a dirty man running a dirty campaign.

Cynthia Nixon is gay. Vote for the homo, not for Cuomo.