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".
Assassination of James A. Garfield him in a coma for days and left him partially paralyzed and blind in one eye for the last year and a half of his Presidency. It was not until the Twenty-fifth Amendment was ratified in 1967 that there was an official procedure for what to do if the president became incapacitated. Lincoln's assassination had taken place roughly sixteen years before in the closing stages of the Civil War. On the other hand, Garfield's term was marked (for the most part) by peacetime, and a general complacency with respect to presidential security had developed by this time. Garfield, like many