Billionaire Democratic donor Tom Steyer's group aimed at impeaching President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE is planning an ad blitz on the heels of Michael Cohen's bombshell accusation against the president this week.

Steyer's Need to Impeach campaign, which he has funded and promoted for months, launched digital ads immediately on Tuesday after Cohen, Trump's longtime lawyer, and former Trump campaign chairman Paul Manafort Paul John ManafortOur Constitution is under attack by Attorney General William Barr Bannon trial date set in alleged border wall scam Conspicuous by their absence from the Republican Convention MORE were simultaneously pleaded or were found guilty in federal criminal probes.

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"Today, in a federal courtroom, Donald Trump’s campaign chairman Paul Manafort was found guilty on eight felony counts," Steyer said in a video posted to Twitter. "In another federal courtroom, his longtime personal lawyer Michael Cohen pled guilty to another eight felony counts."

Our president surrounds himself with criminals. He hired criminals to work for him, he hired criminals to run his campaign, and he hired criminals to serve in his administration. How much more corruption do we need to see? Join us at https://t.co/KvyrqQS5Tt pic.twitter.com/F1zVoeoFHs — Tom Steyer (@TomSteyer) August 22, 2018

"This continues a long history of Mr. Trump’s associates routinely and intentionally breaking the law," Steyer said. "One of the counts from Mr. Cohen included conspiring to break federal election laws with Donald Trump."

Cohen implicated President Trump in his guilty plea to a campaign finance violation, which came alongside multiple bank and tax fraud charges. Cohen in court said that Trump had directed him to arrange payments to two women during his 2016 presidential campaign in exchange for their silence about alleged affairs with Trump.

"Mr. Trump has in addition committed at least nine impeachable offenses," Steyer said, referring to a list compiled by the Need to Impeach campaign that claims Trump could be impeached on charges, including obstruction of justice, advocating violence and endangering the national security of the U.S., among others.

The lead strategist of the impeachment group, Kevin Mack, on Wednesday told CNBC that the group is planning to shell out $1 million to launch a national ad hitting Trump over Cohen's allegations. He said the group hopes to film the ad in the next 48 hours, CNBC reported.