A former special assistant to President George W. Bush said special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s Russia report “looks just plain bad” for former President Obama.

Scott Jennings, a CNN contributor, penned an op-ed on Friday denouncing Obama for allowing Russians to meddle “on his watch.”

"The Mueller report flatly states that Russia began interfering in American democracy in 2014. Over the next couple of years, the effort blossomed into a robust attempt to interfere in our 2016 presidential election. The Obama administration knew this was going on and yet did nothing," Jennings wrote.

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Jennings, who previously served as a campaign adviser to Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellFEC flags McConnell campaign over suspected accounting errors Poll: 59 percent think president elected in November should name next Supreme Court justice Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' MORE (R-Ky.), argued that Obama went “soft” on Russia because of the Iran nuclear deal.

“Obama wanted Putin in the deal, and to stand up to him on election interference would have, in Obama's estimation, upset that negotiation,” Jennings wrote. “This turned out to be a disastrous policy decision.”

Obama did slap sanctions on Russia after the election as punishment for its electoral interference, but Jennings said it was a “toothless response to a serious incursion.”

“I guess if I had failed to stop Russia from marching into Crimea, making a mess in Syria, and hacking our democracy I'd be looking to blame someone else, too,” Jennings wrote of Democrats’ attempts to deflect on President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE or McConnell.

Jennings also noted that Obama and then-Attorney General Eric Holder Eric Himpton HolderThe Hill's Campaign Report: Trump's rally risk | Biden ramps up legal team | Biden hits Trump over climate policy Biden campaign forming 'special litigation' team ahead of possible voting battle Pompeo, Engel poised for battle in contempt proceedings MORE declined to prosecute WikiLeaks founder Julian Assange Julian Paul AssangePsychiatrist says Assange told him he was hearing imaginary voices, music Assange extradition hearing delayed over coronavirus concerns The Intercept's Glenn Greenwald discusses U.S. case against Assange MORE in 2010. Assange then helped Russia disseminate hacked emails from the Democratic National Committee in 2016.

He called for “subsequent investigations” into how the Obama White House “failed.”

“If you consider Russian election interference a crisis for our democracy, then you cannot read the Mueller report, adding it to the available public evidence, and conclude anything other than Barack Obama Barack Hussein ObamaThe Memo: Trump's strengths complicate election picture Obama shares phone number to find out how Americans are planning to vote Democrats' troubling adventure in a 'Wonderland' without 'rule of law' MORE spectacularly failed America,” Jennings wrote.

Mueller on Thursday released a 400-plus-page, partially redacted report on his investigation into Russian interference in the 2016 election.

The report detailed extensive Russian efforts to help Trump win the 2016 election but did not find evidence of collusion between the campaign and Russia.

It noted that Trump staffers expected to benefit from Russia’s efforts to interfere in the 2016 presidential race against Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE.

Mueller described how a Russian troll farm connected to the Kremlin worked to sow discord among the American public on social media.

The report also detailed how Russian intelligence officers hacked both the Democratic National Committee and Clinton's campaign chairman, John Podesta.