Who is Lyndon Johnson from Robert Kennedy and His Times and what is their importance?

Lyndon Johnson was Vice-President to John Kennedy. He became President when Kennedy was assassinated. Johnson completed Kennedy's term, and he was elected by a landslide in 1964. During his four-year elected term, Johnson became embroiled in Vietnam, escalating the war to heights that drained public coffers and support. In his attempts to bear the cost of a war and domestic programs, he could not be successful in either. During the last year of his term, he was clearly devastated by his failures and became, in the eyes of many White House aides and advisers, paranoid, convinced that the Kennedys were out to crucify him. In 1968, faced with rioting cities and huge anti-war demonstrations, Johnson announced that he would not seek a second term in office.