Wendy McMahon, chief executive officer of CBS News, resigned under pressure after Paramount Global, the broadcaster’s parent company, raised concerns about the fairness of its reporting, discord at the news division and the performance of the business,

Wendy McMahon, a TV executive who aggressively pushed CBS News and TV stations into new business operations and formats during a tumultuous era under parent company Paramount Global, said Monday she would step away from her role.