Democratic presidential candidate Mike Bloomberg made his $54 billion fortune off a media empire that bears his name, so he knows something about running media companies. And he thinks Facebook should be regulated like a media company.

The former New York mayor is joining other Democratic candidates and officeholders in calling for more regulation of Facebook. The Menlo Park company is already the subject of antitrust investigations by the Federal Trade Commission and the Justice Department.

So are other top tech firms including Apple, Google and Amazon. But it is Facebook, which is the dominant social media network for political advertising, that has drawn the most anger lately from politicians.

Bloomberg wasn’t specific in explaining what regulation he would like to see, but he was definitive that there should be more.

“They are a media company, and there’s no excuse for not regulating them,” Bloomberg told The Chronicle’s “It’s All Political” podcast during a recent campaign stop in Oakland. “When they say that their business model doesn’t allow it, then change your business model. But we shouldn’t change what’s good for society.”

Other politicians have been lashing out at Facebook for not doing more to keep foreign operatives from posting misleading content.

Facebook announced that it will not fact-check ads from politicians ahead of the 2020 presidential election. In contrast, Twitter said it will not accept political advertising and Google said it will limit the targeting of such ads.

“In the absence of regulation, Facebook and other companies are left to design their own policies,” Rob Leathern, Facebook’s director of product management, said in a company blog post. “We have based ours on the principle that people should be able to hear from those who wish to lead them, warts and all, and that what they say should be scrutinized and debated in public.”

House Speaker Nancy Pelosi, whose San Francisco district includes large Facebook offices, wasn’t buying it. In May, Facebook refused to remove a video of Pelosi that had been altered to make it appear she was slurring her words.

“I think what they have said very blatantly, very clearly is that they intend to be accomplices for misleading the American people with money from God knows where,” Pelosi said last week.

Facebook also has refused to take down a false ad from President Trump’s campaign that accuses former Vice President Joe Biden of acting corruptly during his dealings with Ukraine while he was vice president.

“I’ve never been a fan of Facebook,” Biden said Friday. “I’ve never been a big (Facebook founder Mark) Zuckerberg fan. I think he’s a real problem.”

Sen. Elizabeth Warren tried to call attention to the issue by running an intentionally fake ad claiming Zuckerberg endorsed Trump’s re-election. Even though Zuckerberg privately recommended several hires to Pete Buttigieg, his former Harvard classmate, Buttigieg recently said Zuckerberg has become too powerful.

“No one should have that kind of power,” the former mayor of South Bend, Ind., told the New York Times.

Bloomberg acknowledged that “people love (Facebook’s) product — that’s why they have a billion-plus customers.”

But he added, “All organizations that distribute news should have the same responsibilities as The San Francisco Chronicle. You are responsible for what you print and deliver to your readers.”

Joe Garofoli is The San Francisco Chronicle’s senior political writer. Email: jgarofoli@sfchronicle.com Twitter: @joegarofoli