An adviser to Democratic presidential hopeful Mike Bloomberg's campaign said Tuesday that the former mayor would sell his company, Bloomberg LP, if elected president, and that he would release his tax returns as a candidate.

"Mike will release his tax returns," adviser Timothy O'Brien told CNN's Christiane Amanpour. "Mike will also sell Bloomberg LP. There will be no confusion about any of his financial holdings, blurring the line between public service and personal profiteering."

The adviser sought to draw a contrast between Bloomberg and President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE, who has faced intense scrutiny for not releasing his tax returns and for maintaining ownership of his business empire after entering office.

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Trump announced before becoming president that he would put his business holdings in a trust operated by his adult sons while he was in office.

"He will be 180 degrees away from where Donald Trump is on these issues because Donald Trump is a walking financial conflict of interest," O'Brien said of Bloomberg.

Bloomberg's Democratic opponents have hit the billionaire businessman in recent days, going after him for bankrolling his campaign with his personal fortune.

Sen. Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.) tied Bloomberg to Trump in a tweet on Tuesday, calling the former New York City mayor an "egomaniac billionaire."

It’s a shame Mike Bloomberg can buy his way into the debate. But at least now primary voters curious about how each candidate will take on Donald Trump can get a live demonstration of how we each take on an egomaniac billionaire. https://t.co/H02radEZcv — Elizabeth Warren (@ewarren) February 18, 2020

Bloomberg has also faced backlash for unearthed comments regarding the controversial policies of "stop and frisk" and redlining, a discriminatory housing practice that made it difficult for people in minority communities to obtain mortgages.

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Warren's fellow progressive presidential contender Sen. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.) also went after Bloomberg on Saturday, claiming his past positions on certain policies would hinder his ability to gin up enthusiasm on the left to defeat Trump.

"We will not create the energy and excitement we need to defeat Trump if that candidate pursued, advocated for, and enacted, racist policies like stop and frisk, which caused communities of color in his city to live in fear," Sanders said.

While Bloomberg is not on the ballot in Nevada, which is holding its presidential caucuses Saturday, he is set to face off with the other Democratic contenders during a debate Wednesday night in Las Vegas.

Updated at 6:50 p.m.