Nixon's re-election committee conspired to break into Democratic headquarters and the White House covered it up

The trail, the testimony, and the tapes

The public case against Nixon's White House was built in layers, and each one strengthened the last. Two young Washington Post reporters, Bob Woodward and Carl Bernstein, spent the following months tracing campaign money to the burglars, aided by a source they called “Deep Throat”, later revealed, in 2005, to be Mark Felt, the FBI's Associate Director at the time. Their reporting kept the story alive through a period when the White House dismissed it as, in press secretary Ron Ziegler's phrase, a “third-rate burglary” unworthy of comment.

Congress escalated what journalism had started. On 7 February 1973 the Senate voted to create the Select Committee on Presidential Campaign Activities, chaired by Senator Sam Ervin of North Carolina, to investigate. Its televised hearings that spring and summer drew a national audience to testimony from White House counsel John Dean, who told the committee under oath that a cover-up reached the Oval Office itself, including his own warning to Nixon that there was “a cancer growing on the presidency.”

Then, on 13 July 1973, a mid-level aide named Alexander Butterfield was asked a seemingly routine question by committee staff about White House recording practices. He answered it truthfully: Nixon had installed a voice-activated taping system that captured nearly all of his Oval Office conversations. The revelation transformed the entire investigation. What had been a dispute over testimony and memory became a dispute over a literal, contemporaneous recording of what the president had said and known, if the tapes could be obtained.

The case against Nixon stopped being one man's word against another's the moment the country learned there was a tape running the whole time.

The tapes brought a mystery of their own. On 21 November 1973, White House lawyer J. Fred Buzhardt told Judge John Sirica that a recording of Nixon and Haldeman talking on 20 June 1972 (three days after the break-in) had an 18½-minute gap. Nixon's secretary, Rose Mary Woods, testified she might have caused up to five minutes of it by accident, demonstrating an awkward stretch between a foot pedal and a ringing telephone that reporters nicknamed the “Rose Mary Stretch.” A six-member forensic panel appointed by Sirica concluded in January 1974 that the gap instead resulted from at least five separate, deliberate erasures, inconsistent with a single accidental slip. No one was ever criminally charged over it, and a 2003 National Archives attempt to recover the audio with modern forensic technology failed outright; the tape remains in storage in case future technology succeeds where that one could not.

Nixon fought the subpoenas for the tapes all the way to the Supreme Court, invoking executive privilege. On 24 July 1974, the Court ruled unanimously, 8–0, in United States v. Nixon that the president had no absolute privilege allowing him to withhold evidence in a criminal proceeding, and ordered the tapes turned over to the special prosecutor. Among them was the recording of a 23 June 1972 Oval Office conversation (made just six days after the break-in) that came to be called the “smoking gun” tape. On it, Nixon can be heard instructing Chief of Staff H.R. Haldeman to have the CIA falsely tell the FBI that further investigation of the break-in would compromise national security, so that the Bureau would call off its inquiry. It was the first piece of direct evidence that Nixon himself had ordered obstruction of the investigation from almost the very beginning.

Testing every line of defense

Most entries in this encyclopedia weigh the strongest believer argument against the strongest documented rebuttal. Watergate does not really allow for that exercise, because every line of defense Nixon and his aides offered was tested (by a Senate committee, by federal grand juries, by a trial court, and by the Supreme Court) and each one failed on the record, not merely in the court of public opinion.

Nixon's team initially argued the break-in was an isolated act by rogue operatives unconnected to the campaign leadership; the money trail traced by investigators and confirmed at trial ran straight to CRP and to former Attorney General John Mitchell. They argued executive privilege shielded the tapes from subpoena; the Supreme Court rejected that claim unanimously. They argued, until 5 August 1974, that Nixon had not personally ordered any obstruction; his own recorded voice, once released, showed otherwise. What can honestly be said in mitigation is narrower than a defense: no evidence has ever shown Nixon personally ordered the original break-in, and his role (established by his own tapes) was in directing the cover-up that followed it, not in planning the burglary itself. That distinction affects the precise charges; it does not change the verdict on the conspiracy as a whole, which every institution that examined it, including ones Nixon had appointed judges to, found to be real.

Why a proven conspiracy still matters

Watergate occupies a singular place in the history of American institutional trust: it is the case in which “the president is personally directing a criminal conspiracy from the Oval Office” went from a claim that would have sounded far-fetched in June 1972 to an established fact, certified by every branch of government, within twenty-six months. A Senate committee exposed the taping system that made proof possible; a unanimous Supreme Court, including justices Nixon himself had appointed, ordered the evidence released; a bipartisan House committee voted to impeach; federal juries convicted his closest aides; and Nixon's own recorded voice supplied the final, irrefutable confirmation.

That is also exactly why Watergate became a reference point for later accusations that a powerful institution is lying to cover up wrongdoing. The suffix “-gate” has been bolted onto scandals ranging from the trivial to the serious ever since, trading on the memory of a case where the cover-up really was proven, in granular detail, by the ordinary machinery of government working as designed. The honest lesson is narrower than “institutions always lie”: it is that this one did, demonstrably, and that the proof survived specifically because investigators, judges and legislators kept pulling the thread until it led to a tape recorder that never lied. Watergate is not evidence that every powerful figure is conspiring; it is proof that when one genuinely is, a functioning system of courts, committees and a free press can still prove it and remove them.

Before Watergate, “the president is running a criminal conspiracy” was paranoia. After it, for one specific president, it was simply the finding: reached by the Senate, the courts, the House, and his own tape recorder.