ALBANY — A key group that opposed Gov. Cuomo in the Democratic primary is working behind the scenes to get the progressive Working Families Party to back him in the general election, the Daily News has learned.

The Working Families Party is to decide Wednesday whether to continue on with actress Cynthia Nixon on the governor’s line and City Councilman Jumaane Williams as its lieutenant governor pick, give the lines to Cuomo and Lt. Gov. Kathy Hochul, or pick two other, lesser-known candidates.

With Cuomo and Hochul having won their Democratic primaries, Jonathan Westin and others from New York Communities for Change are telling members of the Working Families Party state committee that picking them would be the rational thing to do, sources within the party said.

“They’ve argued the primary is over, Cynthia did not win and with us living in the time of Trump, we have to move forward,” said one Working Families Party source.

Westin and others, the source said, have argued the party can’t risk being a spoiler that helps Republican gubernatorial candidate Marc Molinaro by pulling votes from Cuomo.

Added a second party source: “It’s the best worst option of all the bad options. If the WFP gets there, it’s going to be as backhanded an endorsement as possible. It’s not going to be 100% support for him. It’s going to be that it’s important in the time of Trump, but we’re going to continue to hold (Cuomo) accountable.”

Many of the unions that used to fund the small but influential party but left over disagreements with its direction have contacted members urging them to pick Cuomo. One such union leader who has been reaching out is city teachers union President Michael Mulgrew, who declined comment.

By all accounts, Wednesday’s vote will be close.

“There’s real mixed feelings on it,” said a Working Families Party state committee member. “There’s a lot of anger at Cuomo, but there’s also a lot of folks who realize Cynthia lost the primary, and in the time of Trump, we need to be rational.”

The debate began at a meeting last Wednesday.

“There’s a lot of strong opinions on both sides,” said Working Families Party state director Bill Lipton. “The decision is going to be driven by our members.” could be on the ballot against her.

One possibility for Nixon is the Working Families Party line in the district of longtime Manhattan Democratic Assemblywoman Deborah Glick. Nixon has said she would not actively campaign against Glick, who nonetheless is less than thrilled at the possibility that Nixon, a celebrity,

Williams, sources say, could be moved onto the Working Families Party line the district of Brooklyn Democratic Sen. Simcha Felder, who caucuses with the Republicans. The party had backed Felder’s failed Democratic primary opponent Blake Morris, but never nominated him—instead choosing a little-known placeholder candidate.

Green party candidate Howie Hawkins told the New York Progressive Action Network at its board meeting in Ithaca on Sunday that he is in talks with the WFP about possibly being its candidate and that the Green Party, which typically does not cross endorse, agreed to have him running on both lines, a source said.

Cuomo, who was backed by the Working Families Party in 2010 and 2014 despite a frosty relationship, has not said whether he will accept the line if offered, though party sources say they have been told through intermediaries he would.

The party must ensure it gets at least 50,000 on the governor’s line or its not guaranteed a spot on the ballot the next four years.

Cuomo aides had no comment.

One source said the governor and his team are monitoring the situation but have not directly engaged with the party. At the same time, the source said, Cuomo, recognizing the need for Democrats and their allies to proceed in a unified fashion in order to take on Trump and the Republicans, is not “sending negative messages” about rejecting the line.