Tom Steyer’s lefty staff mocked him in now-deleted tweets

Billionaire Tom Steyer’s lefty campaign staff — before cashing his checks — were brutally heckling the California governor hopeful in comments and tweets that have since been scrubbed from the internet, The California Post has learned.

Steyer, the billionaire-turned-populist who’s called for higher taxes on the rich, was a frequent punchline for one partner at The Fight Agency, the lefty campaign team that fueled New York City Mayor Zohran Mamdani’s successful bid and recently signed him as a client.

“Mike Bloomberg and Tom Steyer should match, dollar for dollar, what they spend on their campaigns in donations to Stacey Abrams’ Fair Fight Action and David Plouffe’s Acronym,” tweeted Fight Agency Partner Morris Katz in 2019, referring to progressive political initiatives from the top Dems.

Steyer, a Democratic financier and climate activist, launched a failed presidential bid in 2020 and has plowed some $38 million of his own fortune into his gubernatorial bid.

“At least we’ve still got Tom Steyer!” Katz snarked in 2020 in response to news that former Rep. John Delaney dropped his presidential bid.

Another blunt post suggested that Steyer and his fellow billionaire ex-New York City Mayor Michael Bloomberg should have dropped their bids ahead of a crowded primary debate in February 2020.

The Fight Agency is run by veterans of prior campaigns of Sen. Bernie Sanders (I-Vt.), Sen. John Fetterman (D-Pa.) and others — with a focus on boosting working-class candidates with sharp messaging and compelling ads.

Partner Rebecca Katz has slammed billionaires in politics — once labeling Steyer’s self-funded 2020 bid as a “vanity project.”

“For the $100 million that Tom Steyer is planning to spend on this race, you could change the balance of every competitive state legislative chamber in America. Think about that for a second,” Katz fumed to Time Magazine in 2020.

“How can someone complain about how our democracy is being sold to the highest bidder, and then in the next breath pledge to spend $100 million to buy the highest office in the land?” she added.

“I don’t know how anyone can look at this primary field and think – you know what we need? Another white man.”

Katz has since changed her tune about the governor wannabe, telling The Bulwark that Steyer is “as clear-eyed on the problems and challenges we have in America—and California in particular—[as] anyone out there.”

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“Is he similar to some of our other clients? No, he is not,” she added. “But does he understand the problem, and does he have real solutions? One hundred f–ing percent.”

Fight Agency has also signed on with Graham Platner, the progressive Democrat looking to beat Maine Gov. Janet Mills for the party’s nomination. Both Mills and Platner are seeking to oust incumbent Sen. Susan Collins (R-Maine).

Steyer is one of several Democrats competing in the governor’s race, including Rep. Eric Swalwell, former Rep. Katie Porter, San Jose Mayor Matt Mahan and former state attorney general Xavier Becerra.

Steyer has positioned himself as a pro-union, pro-tax progressive who’s called for higher taxes on billionaires like himself and courted labor support, making a cameo at the contentious San Francisco teachers’ strike last week.

The agency did not immediately respond to a request for comment.