Edward A. Clark with those opposed to the liberal elements, led by Texas Senator Ralph Yarborough. After the assassination of John F. Kennedy in 1963, Johnson became president. In 1965, Johnson appointed Clark as the US ambassador to Australia. In 1972, Clark supported Richard Nixon for president over George McGovern. In 1974, President Nixon appointed Clark to the General Advisory Committee of the United States Arms Control and Disarmament Agency. Later, Clark supported Ronald Reagan, who became president. In 2003, Barr McClellan, an attorney who had been employed by Clark's law firm in Austin, published "Blood, Money & Power: How LBJ Killed JFK".
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