Bob Woodward and Carl Bernstein Investigate
By that time, a growing number of people—including Washington Post reporters Bob Woodward and Carl Bernstein, trial judge John J. Sirica and members of a Senate investigating committee—had begun to suspect that there was a larger scheme afoot. At the same time, some of the conspirators began to crack under the pressure of the cover-up. A secretive whistleblower codenamed “Deep Throat," who would remain anonymous for decades, provided key information to Woodward and Bernstein.
A handful of Nixon’s aides, including White House counsel John Dean, testified before a grand jury about the president’s crimes; they also testified that Nixon had secretly taped every conversation that took place in the Oval Office. If prosecutors could get their hands on those tapes, they would have proof of the president’s guilt.
Nixon struggled to protect the tapes from the grand jury during the summer and fall of 1973. His lawyers argued that the president’s executive privilege allowed him to keep the tapes to himself, but Judge Sirica, the Senate committee and an independent special prosecutor named Archibald Cox were all determined to obtain them.
The Saturday Night Massacre
When Cox refused to stop demanding the tapes, Nixon ordered that he be fired, leading several Justice Department officials to resign in protest. These firings and resignations, which took place on Saturday, October 20, 1973, became known as the Saturday Night Massacre. Eventually, Nixon agreed to surrender some—but not all—of the tapes.
By 1974, the Nixon administration's cover-up and efforts to impede the Watergate investigation began to unravel. On March 1, a grand jury appointed by a new special prosecutor indicted seven of Nixon’s former aides on various charges related to the Watergate affair. The jury, unsure if they could indict a sitting president, called Nixon an “unindicted co-conspirator.”
In July, the Supreme Court ordered Nixon to turn over all the tapes. When the president dragged his feet, the House Judiciary Committee voted to impeach Nixon for obstruction of justice, abuse of power, criminal cover-up and several violations of the U.S. Constitution.
Finally, on August 5, Nixon released the tapes, which provided undeniable evidence of his complicity in the Watergate crimes. The tapes included a highly suspicious 18-minute gap in a conversation between Nixon and Chief of Staff H.R. Haldeman; analysts testified that the erasure was intentional, further clouding Nixon's credibility.