1913- . 37th president of the USA 1969-74, a Republican. He attracted attention as a member of the Un-American Activities Committee 1948, and was vice president to Eisenhower 1953-61. As president he was responsible for US withdrawal from Vietnam, and forged new links with China, but at home his culpability in the cover-up of the Watergate scandal and the existence of a `slush fund' for political machinations during his re-election campaign 1972 led to his resignation 1974 after being threatened with impeachment. Of Quaker family, Nixon grew up in Whittier, California; he became a lawyer, entered Congress in 1947, and in 1948, as a member of the Un-American Activities Committee, pressed for the investigation of Alger Hiss, accused of being a spy. Nixon was senator for California from 1951 until elected vice president. He lost the presidential election 1960 to J F Kennedy, partly because televised electoral debates put him at a disadvantage. He did not seek presidential nomination in 1964, but in a `law and order' campaign defeated Vice-President Humphrey 1968 in one of the most closely contested elections in US history. In 1969 he formulated the Nixon Doctrine abandoning close involvement with Asian countries, but escalated the war in Cambodia by massive bombing. Re-elected 1972 in a landslide victory over George McGovern, he resigned 1974, the first US president to do so, under threat of impeachment on three counts: obstruction of the administration of justice in the investigation of Watergate; violation of constitutional rights of citizens, for example attempting to use the Internal Revenue Service, Federal Bureau of Investigation, and Central Intelligence Agency as weapons against political opponents; and failure to produce `papers and things' as ordered by the Judiciary Committee. He was granted a pardon 1974 by President Ford.