Corey Lewandowski, former campaign manager for President-elect Donald Trump turned professional Trump propagandist for CNN, has resigned from the network amid reports that he is seeking a job in the new administration. His resignation just days after Trump’s win underlines the farcical nature of his employment as a “political commentator” for CNN during the election. And the nature of his exit -- proactively resigning to potentially go back to officially working for Trump rather than being fired by CNN for obvious ethical reasons -- should humiliate the network.

CNN hired Lewandowski shortly after he was fired by the campaign in June. His hiring was immediately and widely criticized, both due to his history of open hostility toward -- and even physical altercations with -- the press, and the fact that he was likely prevented from criticizing Trump due to a non-disparagement agreement. The New York Times reported Friday that Lewandowski “has been frequently spotted this week at Trump Tower in Manhattan, chatting with senior aides and attending meetings,” and that he is seeking a senior adviser role in the administration and is in consideration for a leadership role with the Republican National Committee.

CNN president Jeff Zucker repeatedly defended Lewandowski’s hiring, even as it became clear that he was still drawing large “severance” checks from the campaign, advising Trump on strategy, helping to prep him for the debates, and flying on the candidate’s plane while working for the network.

Zucker’s defense for hiring Lewandowski is that he provided needed pro-Trump balance to CNN’s airwaves while supposedly being able to offer expert information from someone who had been inside the campaign apparatus. But CNN’s airwaves were already filled with Trump apologists, and Lewandowski’s reported non-disclosure agreement essentially prevented him from sharing any unique insight into the campaign. So what CNN viewers got instead was a lot of dishonest shilling on Trump’s behalf -- and given the nature of Trump’s campaign, there was no shortage of scandals for Lewandowski to spin to CNN’s audience.

When video of Trump boasting about sexually assaulting women emerged in October, Lewandowski downplayed the seriousness of the comments by telling CNN viewers that “we’re not electing a Sunday School teacher” and stressing Trump’s leadership ability. (In a separate appearance a few days later, Lewandowski announced that “nobody cares” about Trump’s comments before pivoting to talking about Hillary Clinton’s emails.)

When women came forward alleging that Trump had assaulted them, Lewandowski cast doubt on the veracity of the claims, suggesting it was suspicious that they had waited until so close to the election to come forward.

When The New York Times published tax documents suggesting Trump had been able to avoid paying federal income tax for years, Lewandowski tried to obscure the nature of the report by accusing the Times of a “felony” for publishing its article and encouraging the candidate to sue the paper “into oblivion.”

When a fellow panelist questioned Trump's years-long racist crusade questioning President Obama’s birthplace, Lewandowski questioned (to the horror of dozens of journalists) why Obama hadn’t released his college records, asking, “Did he get in as a U.S. citizen, or was he brought into Harvard University as a citizen who wasn't from this country?”

There are plenty of other lowlights from Lewandowski's CNN tenure, but you get the idea.

Lewandowski’s resignation essentially confirms what was already an open secret: he never really stopped working for Trump -- his role just changed. Media Matters had for months been calling for CNN to cut ties with Lewandowski over ethical concerns, but now that he’s resigned, CNN can’t even salvage a small bit of journalistic responsibility over the Lewandowski debacle.

In effect, CNN just paid Trump’s close ally for five months to spin on Trump’s behalf while auditioning for a job in the Trump administration. The network’s journalists should be embarrassed that their executives had so little regard for CNN’s credibility.