52 years ago today, April 30, 1973 (March 28, 1973 in the lunar calendar), four senior Nixon aides resigned due to the Watergate incident. Nixon held a press conference after the Watergate scandal was exposed. On April 30, 1973, four senior aides to President Nixon offered to resign after asserting that the White House was trying to cover up the so-called Watergate incident. At the same time, Nixon said in a televised speech to the nation that he took responsibility for the Watergate incident, but that he did not know it was intended to spy on political intelligence, and he had no attempt to cover up the incident. Among the four officials who resigned today were the serious White House Quarterhead H-R-Bob Haldeman and the president's chief adviser on domestic affairs John D. Ehrlichman. They say their ability to perform their duties has been undermined. White House adviser John W Dean, who threatened to drag his boss into the case, resigned today at the president's request. At least for this stage, Leonard Garment will replace him. Also resigned was Attorney General Richard G. Crandinster. He said some of his close friends had become suspects in the Watergate scandal, and the principle of "enforcing the law with justice" prevented him from continuing to play his role. Appointed to replace him was Defense Secretary Elliot L. Richardson. Richardson will be responsible for investigating the break-into into the Watergate office and subsequent cover-up activities by senior presidential aides and party officials. Domestic Affairs Advisor Ehrlichman, White House Chief of Staff Haldeman