One analyst wonders if Hillary Clinton's emails will be scrutinized by the press as closely as recorded White House telephone conversations made by Richard Nixon preceding Watergate. (Associated Press)
In this Aug. 9, 1974 photo, Richard Nixon waves goodbye with a salute to his staff members outside the White House as he boards a helicopter and resigns the presidency on Aug. 9, 1974. He was the first president in American history to resign the nation's highest office. (AP Photo, File)
In this June 10, 1983 frame grab of video made available by Raiford Communications, Inc., former president Richard Nixon talks about his 1974 resignation in a series of interviews conducted by former White House aide Frank Gannon in New York City. The Richard Nixon Presidential Library and the privately held Nixon Foundation are co-releasing a trove of videotaped interviews with the former president to mark the 40th anniversary of his resignation following the Watergate scandal. The 28 minutes of tape, detailing Nixon's personal turmoil in his final week in office, were culled from more than 30 hours of tape recorded in 1983. (AP Photo/Copyright Raiford Communications) IMAGE MAY ONLY BE USED FOR 3 DAYS FROM TIME OF TRANSMISSION; NO ARCHIVING; NO LICENSING. PUBLIC OUT.
President Richard Nixon is the listener in his White House Oval Office as George Bush, chairman of the Republican National Committee talks with him, March 9, 1973. The interested spectator at center is Janet Johnston, co-chairman of the RNC. (AP Photo/John Duricka)
FILE - In this Oct. 21, 1960 file photo, Democratic presidential candidate, Sen. John F. Kennedy, center left, and Republican candidate, Vice President Richard Nixon, stand in a television studio during their presidential debate in New York. Polls found those who listened on radio awarded Nixon the debate victory. Those watching on TV gave Kennedy the nod. (AP Photo)
** FILE ** In this Aug. 9, 1974, file photo, Richard Nixon says goodbye to members of his staff outside the White House in Washington as he boards a helicopter for Andrews Air Force Base after resigning the presidency in Washington. (AP Photo/File)