CBS News signs 2016 Clinton campaign manager Robby Mook as contributor

CBS News signs 2016 Clinton campaign manager Robby Mook as contributor
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CBS News has signed former Hillary ClintonHillary Diane Rodham ClintonCountering the ongoing Republican delusion Republicans seem set to win the midterms — unless they defeat themselves Poll: Democracy is under attack, and more violence may be the future MORE 2016 campaign manager Robby Mook and former 2016 Marco RubioMarco Antonio RubioRepublicans struggle to save funding for Trump's border wall Rubio: Dropping FARC from terrorist list threatens Colombians, US security This Thanksgiving, skip the political food fights and talk UFOs instead MORE campaign manager Terry Sullivan as contributors, according to a Thursday announcement by the network.

Mook "is an experienced political strategist who brings vast insight and knowledge into American politics," CBS said in a statement announcing the hires, while Sullivan is "a seasoned strategist with more than two decades of experience in politics" who has "played a senior role in more than 100 campaigns."

CBS News has undergone several changes in the past year. Former "CBS This Morning" co-host Norah O'Donnell replaced Jeff Glor as "CBS Evening News" anchor, and Susan Zirinsky, a former "48 Hours" executive producer, took the helm as CBS News president, replacing David Rhodes. 

Zirinsky also signed "CBS This Morning" anchor Gayle KingGayle KingR. Kelly accuser tells Gayle King their interview was a wake-up call Nate Burleson makes leap from football to news with 'CBS Mornings' Witness says R. Kelly kept watch over girlfriends during Gayle King interview MORE to a new contract earlier this year. 

The signings of Mook and Sullivan come as all major broadcast news organizations continue to add talent and resources to their respective rosters ahead of the 2020 presidential election.