Hotel union by far Hizz biggest fan

Mayor de Blasio has repeatedly touted the “grassroots” nature of his quixotic presidential campaign, but nearly 70 percent of his donors are tied to a single union — the powerful Hotel Trades Council.

The 40,000-member HTC is the only union that’s backed de Blasio’s (inset) long-shot 2020 bid.

Its June 5 endorsement came after the de Blasio administration targeted union rival Airbnb, subpoenaing the company to hand over listing information as part of a crackdown on illegal rentals and creating an Office of Special Enforcement to investigate unlawful sublets.

The lodging Web site is a direct competitor of the city’s hotel industry.

The union’s president, Peter Ward, praised the mayor in June for requiring hotel developers in certain areas to get special permission for their projects.

“In just a few short years we changed the zoning in this city, thanks to this mayor, to create a fair process to make sure that hotels that come here to operate go through a process that guarantees they serve not just their interest but the communities,” Ward said.

In the subsequent weeks, some 4,600 hotel and hospitality workers gave a total of $89,000 to the de Blasio campaign, with the average donation being just under $20, according to Center for Public Integrity campaign-finance data reviewed by The Post.

As of June 30, de Blasio has secured $1.1 million from a total of 6,700 donors.

Shortly after launching his White House bid in May, de Blasio told NY1 his campaign would have a “grassroots-focused approach.”

A campaign spokeswoman did not return a message, and an HTC rep declined to comment.