Arnold Zenker Arnold Zenker Associates in Boston, which trains "people to successfully master the public spotlight." Arnold Zenker Arnold L. Zenker (born 1938) is a retired media broadcaster and public appearance counselor who gained brief stardom by sitting in for Walter Cronkite on the "CBS Evening News" in 1967. Zenker studied at the University of Pennsylvania in Philadelphia, from which he received an undergraduate and a law degree. In 1967 at the age of 28, he was asked to sit in for anchor Walter Cronkite to deliver the nightly news. Zenker, working as a Manager of News Programming at CBS at the
Walter Cronkite the urging of his executive producer Ernest Leiser, Cronkite and Leiser journeyed to Vietnam to cover the aftermath of the Tet Offensive. They were invited to dine with General Creighton Abrams, the commander of all forces in Vietnam, whom Cronkite knew from World War II. According to Leiser, Abrams told Cronkite, "we cannot win this Goddamned war, and we ought to find a dignified way out." Upon return, Cronkite and Leiser wrote separate editorial reports based on that trip. Cronkite, an excellent writer, preferred Leiser's text over his own. On February 27, 1968, Cronkite closed "Report from Vietnam: Who, What,