Daniel Ellsberg, co-defendant in the Pentagon Papers case, talks to newsmen outside the Federal building in Los Angeles on Friday, April 28, 1973 after the judge in the case released a government memorandum saying G. Gordon Liddy and E. Howard Hunt, convicted Watergate conspirators, had burglarized the office of Ellsberg?s psychiatrist. Ellsberg called it another instance of ?political espionage.? (AP Photo/Wally Fong

Robert Strauss, national chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ ED KOLENOVSKY)

Robert Strauss, National chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ EFK)

Robert Strauss, national chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ ED KOLENOVSKY)

Workmen remove a desk from a Democratic National Committee office in the Watergate complex in Washington on April 20, 1973. (AP Photo)

Democratic National Committee office in the luxurious Watergate complex in Washington on April 20, 1973. (AP Photo)

Republican National Chairman George Bush, standing, talks about the Watergate case and Democratic National Chairman Robert Strauss listens Wednesday during a joint appearance before the National Press Club on April 18, 1973 in Washington. (AP Photo)

President Richard Nixon tells a White House news briefing on Tuesday, April 17, 1973 in Washington, he will immediately suspended any member of the executive branch who may in the future be indicated by a federal grand jury considering the Watergate Case. (AP photo)

Sen. Charles Mathias, R-Md., talks with newsmen, Monday, April 16, 1973 in Washington, following a meeting of the Watergate Committee. (AP Photo/Jim Palmer)

Sen. Charles Mathias, R-Md., answers a question during an interview in his Washington office, April 16, 1973. Mathias said he would support, as a last resort, the Senate arrest and trial of any White House aide who refuses a subpoena to testify before the Watergate investigating committee. (AP Photo/Henry Griffin)

G. Gordon Liddy, one of the defendants in the Watergate Trial leaves the District Court on Jan. 29, 1973 in Washington D.C. after the defense and prosecution rested their cases. Person at right is not identified. (AP Photo)

PHOTO: EAST NEWS/AFP Photo dat??e du 20 janvier 1973 ?. Washington du pr??sident r??publicain Richard Nixon pronon??ant un discours ?. la tribune lors de sa seconde investiture ?. la pr??sidence des Etats-Unis. Richard Nixon dut d??missionner en ao??t 1974 aprA?s le scandale du Watergate. Picture dated 20 January 1973 of Republican president Richard Nixon pronouncing a speech on his second investiture day in Washington. First elected in 1968 and re-elected in 1972, Richard Nixon had to resign in August 1974 after the Watergate scandal.

Alfred C. Baldwin III, former FBI agent who said he monitored telephones as a spy for President Nixon's campaign committee, turns to talk with the reporters as he arrived Jan. 18, 1973, to testify for the prosecution in the Watergate trial in Washington. (AP Photo)

G. Gordon Liddy, former counsel to President Richard Nixon's campaign finance committee, arrives at U.S. District Court for the Watergate trial in Washington D.C., Jan. 16, 1973. (AP Photo)

G. Gordon Liddy, 42, renders a salute on arrival at the U.S. District Court for appearance in connection with the Watergate trial on Jan. 15, 1973. It was understood that Liddy and another defendant were standing firm in their determination to go through with the political espionage trial. Other person is not identified. (AP Photo)

An exterior view of Watergate office building on Jan. 12, 1973 in Washington, D.C. (AP Photo/BD)

Watergate conspirator Frank Sturgis is seen, Jan. 1973. (AP Photo)

Robert Strauss takes the reins of the Democratic National Committee at his desk the party's Watergate offices in Washington, Dec. 15, 1972. Strauss unseated Jean Westwood for the chairmanship a week ago. (AP Photo/Charles Tasnadi)

Sen.Edward M. Kennedy, (D-Mass)., levels charges at the Nixon administration in Indianapolis Friday, Oct. 7, 1972, during an outdoors rally. Kennedy echoed charges of corruption made by George McGovern Friday. Kennedy cited a campaign slush fund, the Soviet Grain deal, the Watergate affair, and others in his

James W. McCord Jr., security coordinator of U.S. President Nixon's Committee for the Re-election, is seen in this picture released on June 19, 1972, by the Metropolitan Police Washington, after he was arrested in connection with the break-in at the Democratic National Commitee headquarters at the Watergate complex. (AP Photo)