CBS Evening News a one-evening test broadcast on August 19, 1965, before permanently switching to the format on January 31, 1966. Cronkite's prime time special report, "Who, What, When, Where, Why", broadcast on February 27, 1968, ended with his declaration that the United States could only hope for a stalemate in Vietnam. It is often credited with influencing Lyndon Johnson's decision to drop out of the race for President. "If I've lost Walter Cronkite ... [I]'ve lost Middle America", he stated. Under Cronkite, the newscast began what would eventually become an 18-year period of dominating the ratings among the network evening news programs.
Walter Cronkite At about 3:30 pm EST, Cronkite came back into the newsroom to relay some new information. The two major pieces of information involved the Oath of Office being administered to Vice President Johnson, which officially made him the thirty-sixth President, and that Dallas police had arrested a man named Lee Harvey Oswald whom they suspected had fired the fatal shots. After that, Cronkite left again to begin preparing for that night's "CBS Evening News", which he returned to anchor as normal. For the next four days, along with his colleagues, Cronkite continued to report segments of uninterrupted coverage of the