Olbermann made the claim in an interview with The New York Times Magazine:
“Olbermann told me he talked to MSNBC for over a year about rejoining the network, but they asked him for a show with no commentary; he didn’t see the point. (An MSNBC source familiar with the situation confirms that there were talks, but says they fell through for a variety of reasons.) Olbermann also told me he had negotiated with CNN: “There was an offer, then there wasn’t an offer, then there was an offer. And Trump didn’t like me, and apparently exerted influence on that.” (A CNN spokeswoman says there were brief preliminary conversations about Olbermann joining its HLN spinoff, not the flagship channel, and that they took place well over a year ago, without any involvement from Trump.)”
He sounds like Hillary Clinton, blaming others for his failure to get a job, rather than admit that his inability to get a cable news job—or any television job, for that matter—is solely his fault. Then again, Olbermann has never been known for his modesty, or his honesty.