A video making the rounds on Wall Street of a hedge fund billionaire bragging about his wealth in the backseat of a New York City taxicab might as well be a Sen. Elizabeth Warren presidential campaign ad, CNBC's Jim Cramer said Thursday.

"This was paid for by Elizabeth Warren," Cramer said, jokingly, after watching the video of BlueCrest Capital Management co-founder Michael Platt on "Squawk on the Street."

"That guy ... clearly has a humility problem," Cramer added, saying the 51-year-old Platt is an ideal caricature for Warren — who has made criticizing billionaires central to her 2020 Democratic presidential campaign, as part of a larger argument about wealth inequality.

"That's the kind of thing — Elizabeth Warren is sitting there trying to find the 10 people who might rival him," Cramer said.

The "Mad Money" host's remarks stand in contrast to his views on Warren's focus on billionaire investor Leon Cooperman, who was the target of a Warren campaign ad, along with former Goldman Sachs CEO Lloyd Blankfein and others. The ad took aim at billionaires who have criticized the Democratic Massachusetts senator's policies, such as her wealth tax proposal.

Cooperman, whose net worth is estimated at more than $3 billion, is the "wrong whipping boy," Cramer said last month, pointing to the Omega Advisors founder's charitable giving. Cooperman has signed the The Giving Pledge, created by Bill Gates and his wife Melinda Gates and Warren Buffett, to give away most of his wealth to charity.