New York City Public Advocate Tish James will not take the Working Families Party ballot line in her run for attorney general — spurning a party that contributed to her first electoral victory.

“Public Advocate James is focused on earning the Democratic nomination and bringing her capabilities, experience and passion to the Attorney General’s office,” said James spokeswoman Delaney Kempner.

The move potentially creates a multiple candidate field in the general election and it’s not inconceivable that a four-way race featuring individual Republican, Democratic, Working Families Party and independent candidates competing against each other.

The seat, generally considered a safe Democratic hold before the resignation of Eric Schneiderman amid domestic violence allegations, could potentially become a jump ball.

The Working Families Party in a statement blamed Gov. Andrew Cuomo for luring James away from seeking their support in the attorney general’s race.

“It is nothing short of outrageous to see Andrew Cuomo demand Tish James jump through hoops that he would never ask a white man to do. He is telling her to reject the party where she got her start, and refuse the WFP’s support, which could be critical in both the primary and general elections,” said WFP leaders Afua-Atta-Mensah, Karen Scharff, Javier Valdes, and Jonathan Westin. “Meanwhile, he is helping elect Republicans to Congress by running on the Independence Party line.”

They added: “This is part of a disgraceful pattern, just like when he kept white male Republican leadership in the State Senate instead of supporting Andrea Stewart Cousin’s leadership. In King Andrew’s New York, everyone else is a political pawn.”

Cuomo’s team denies having any involvement in urging James away from the ticket. But there are also a confluence of events that are leading to an estrangement between the WFP and Democratic elected officials in New York and a broader political split between labor and the activist groups that historically were the two backbones of the party.

Unions backing out of the party over the last several years, a development that was seen when the party backed Vermont Sen. Bernie Sanders over Hillary Clinton in the 2016 presidential election. Multiple labor groups left the WFP last month as it moved to endorse Cuomo’s rival for the Democratic nomination for governor, Cynthia Nixon.

Cuomo’s re-election bid has drawn the support of allies in the labor movement, while the public-sector unions that have criticized him have largely made peace in recent years.

At the same time, some Democratic upstate chairs became upset when the party did not back the sole upstate resident on the state ballot this year, Lt. Gov. Kathy Hochul, in her re-election bid. The party has endorsed New York City Councilman Jumaane Williams instead.