Watergate: follow the archival tape.
An archival collection offers a route from a familiar historical label to identified recordings.

Begin with the custodian
The National Archives identifies Watergate-related records and trial conversations. A named collection is a stronger starting point than an unattributed quotation. U.S. National Archives and Records Administration ↗
Find the exact conversation
Use the date, participants, recording identifier, and transcript location to resolve a claim. An overview page points toward evidence; it is not every recording in the collection. U.S. National Archives and Records Administration ↗
Keep the proposition bounded
Ask what the selected exchange establishes about a particular action or decision. A documented episode does not authenticate unrelated claims sharing the same label. U.S. National Archives and Records Administration ↗