Norah O’Donnell is officially out as co-host of CBS’s struggling morning show — thanks to Gayle King.

The new anchor lineup for “CBS This Morning” has been set and it doesn’t include O’Donnell because King — riding high off her big interview with R. Kelly — has demanded she be sent elsewhere, The Post has learned.

“Norah is toxic,” a CBS insider said, explaining that the anchor is difficult to work with and is seen as having aided rumors about the impending exit of Jeff Glor, anchor of “CBS Evening News,” in her bid for his job.

The blood is so bad between the morning news co-hosts that King demanded O’Donnell be moved off the show as part of her recent contract negotiations, which kicked off after her now-infamous Kelly interview, the source said.

O’Donnell is still a coveted name at CBS, however, and has been offered a “monster anchor” job that includes a chief political anchor role at the network in addition to Glor’s job as anchor of “CBS Evening News,” The Post has learned. She will also continue to appear on “60 Minutes,” a source said.

Glor, who has struggled to improve on the show’s third-place ranking, will likely be offered a correspondent or weekend anchor role, the source said.

CBS News president Susan Zirinsky denied that King had anything to do with O’Donnell leaving the morning show, which has fallen in the ratings since Charlie Rose was ousted over sexual harassment claims in 2017.

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