Dickerson has been co-anchoring "CBS Evening News" since January, following Norah O'Donnell's exit from the network's flagship evening newscast.

CBS Evening News co-host John Dickerson is leaving at the end of the year amid a push from the network’s new editor-in-chief to replace its on-air talent with Fox News personalities.

Future plans for CBS Evening News have not been confirmed, but this is the first major programming shake-up since Bari Weiss took over as editor-in-chief of the network earlier this month.