Another Bill has let her down.
Hillary Clinton is fuming at ingrate Mayor Bill de Blasio after he balked at endorsing her for president Sunday, despite years of crucial political support from her and her husband, sources told The Post.
“No,” de Blasio said flatly when asked on NBC’s “Meet the Press” if he was endorsing the Democratic front-runner. “Not until I see — and, again, I would say this about any candidate — until I see an actual vision of where they want to go.
“I think, like a lot of people in this country, I want to see a vision. And, again, that would be true of candidates on all levels. It’s time to see a clear, bold vision for progressive economic change.”
The disloyal Dem delivered the snub to his former boss and mentor after her camp got annoyed at him over his plan to travel to Iowa this week to discuss income inequality, sources said.
“There is simply no way on Earth that the Hillary campaign wanted the mayor of New York City cutting into her first cycle of Iowa press,” said one Democratic source.
“There is simply no benefit to her for him to be there. There is no way that his trip will be written about from an ideological standpoint now.”
Clinton, who is considered more moderate than the leftist de Blasio, has spoken out on income inequality in recent weeks, but is considered by many advocates to be weak on the issue because of her relative silence on it and her family’s wealth.
Clinton loyalists blasted the meddling mayor for daring to enter her spotlight — especially considering that she and former President Bill Clinton gave him one of his earliest entrees into government, as a regional director at the federal Department of Housing and Urban Development.
De Blasio also got the golden opportunity to manage Hillary Clinton’s successful US Senate campaign in New York.
And when de Blasio stepped out on his own, it was top Clinton aide Harold Ickes who advised him on his mayoral campaign, during which Hillary personally hit the trail with him and raised money.
Bill Clinton even swore him in as mayor.
“They both offered extraordinarily helpful advice,” de Blasio said of the Clintons at the time. “I am proud to come from the Clinton family.”
An incredulous national Democratic official with ties to New York fumed, “What was de Blasio thinking? Today is not about Bill de Blasio.”
State Sen. Diane Savino (D-SI), a 2008 Clinton delegate, agreed.
“I don’t think de Blasio should be the focus. Hillary should be the focus,” she said.
“He couldn’t get the Democratic National Committee to come to Brooklyn, but Hillary opened her headquarters in Brooklyn.”
Gov. Andrew Cuomo, with whom de Blasio has repeatedly clashed, backed Clinton immediately, saying she has the “resilience and experience to be a great president.”
Cuomo’s camp insisted that the governor was on board all along and that the immediate endorsement was not meant as a slight to de Blasio.
Political consultant Hank Sheinkopf, who worked for Hizzoner’s mayoral rival Bill Thompson, described de Blasio’s move as ultimately self-serving.
“Some people will say he’s an ingrate, but there’s a strategy here,” Sheinkopf said.
“He’s setting himself up to be the progressive clearinghouse in America. He wants to be the national voice of progressives.
“It’s smart,” he added. “In politics, people aren’t friends with people. People tend to use each other. He gains tremendous leverage. She doesn’t need his endorsement now. When she gets hit from the left, his endorsement has much more value. He will definitely endorse her — but endorsements have to have value, and timing is everything.”
Clinton’s publicity push began late in the day Sunday as she left her home in Chappaqua in Westchester County and started a 1,000-mile trip by van to Iowa.
The van — which an aide said was nicknamed Scooby after the cartoon van from “Scooby Doo” called the Mystery Machine — stopped at a gas station in Pennsylvania, where Clinton tweeted a picture of herself with a random family from Michigan.
Her top aide Huma Abedin said the van was Clinton’s idea and “she’s been really excited about it since she came up with it.”
Meanwhile, some observers suggested that the squabble with de Blasio might be good for the party by avoiding the appearance of a coronation.
“That was absolutely the right move by Mayor de Blasio,” said Adam Green, co-founder of the Progressive Change Campaign Committee.
“Those who want our next Democratic nominee to campaign on big, bold, economic populist ideas should focus on laying out clear lines, opening up political space, and creating incentives for candidates to jump into that political space,” Green added. “A rush to endorse mostly does the opposite.”
Additional reporting by Priscilla DeGregory