christa robinsonChrista Robinson, chief communications officer for Tribune until March, has landed at CBS News, where she'll head PR as senior VP of communications.

She takes a post vacated by Sonya McNair, who stepped down in October citing personal reasons.

"Her wealth of experience, her knowledge of the news business, and her relationships with those who cover us makes her the perfect choice for this position," said CBS Corp. chief communications officer Gil Schwartz.

Robinson was previously senior VP of PR for CNN in 14 years with the network. She spent the last two years leading comms. for Tribune's TV and digital operations. Earlier, she was director of communications for the Clinton White House's Domestic Policy Council.

Robinson reports to Schwartz and CBS news division president David Rhodes. The news unit includes "60 Minutes" and the "CBS Evening News with Scott Pelley," among other TV programming, radio and digital.