Cooper is leaving the CBS News show after nearly 20 years amid a shake-up under new editor-in-chief Bari Weiss

Cooper is leaving the CBS News show after nearly 20 years amid a shake-up under new editor-in-chief Bari Weiss

Anderson Cooper, who has reported for CBS' “60 Minutes” for the past two decades in addition to hosting a weeknight news program on CNN, said Monday that he's leaving the CBS…