Former New York City Mayor Mike Bloomberg hit former Vice President Joe Biden Joe BidenBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Joe Biden should enact critical government reforms if he wins MORE's experience in an interview on Wednesday, pointing out that he has never led an organization.

"He's never been the manager of an organization, he's never run a school system," Bloomberg told MSNBC's Stephanie Ruhle.

"The presidency shouldn't be a training job," he continued. "You need somebody who comes in and knows how to run an organization."

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Bloomberg, who jumped into the crowded Democratic primary last month, also hit his other opponents on their qualifications, saying he didn't think "any of them have the experience" to be president.

The billionaire businessman has touted his own experience in politics, business and philanthropy as qualifications to be president.

Bloomberg has also said that he does not think any of the other candidates in the Democratic field could stand up in a head-to-head match-up against President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE.

"I watched all of the candidates, and I just thought to myself, 'Donald Trump would eat them up,' " Bloomberg told CBS News's Gayle King Gayle KingGayle King calls out Pelosi for calling Trump supporters 'henchmen': 'Egregious language' Fauci: Lack of masks at Trump rallies frustrating The Hill's Morning Report - Presented by Facebook - Trump, GOP senators at odds over next stimulus bill MORE in an interview earlier this month.

"Let me rephrase it. I think that I would do the best job of competing with him and beating him," he added.

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Bloomberg, who has an estimated fortune of more than $50 billion, has faced strong criticism from other Democratic rivals, especially Sens. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) and Bernie Sanders Bernie SandersTrump, Biden will not shake hands at first debate due to COVID-19 Sanders tells Maher 'there will be a number of plans' to remove Trump if he loses Sirota reacts to report of harassment, doxing by Harris supporters MORE (I-Vt.), who have accused him of trying to buy his way into the race.

Bloomberg has poured more than $100 million into TV advertisements since his entry in the race and is skipping the four early primary and caucus state to focus on a nationwide campaign.

The former New York City mayor has climbed swiftly in surveys and polls just outside the top four leading candidates.