{"conversationCode":"500-001","tapeNumber":500,"conversationNumber":1,"identifier":"37-wht-conversation-500-001","startDateTime":"1971-05-18T11:26:00.000Z","endDateTime":"1971-05-18T11:55:00.000Z","startDate":"18-May-1971","startTime":"7:26 AM","endDate":"18-May-1971","endTime":"7:55 AM","dateCertainty":"certain","timeCertainty":"estimated","participants":"Nixon, Richard M. (President); Butterfield, Alexander P.;","description":"On May 18, 1971, President Richard M. Nixon and Alexander P. Butterfield met in the Oval Office of the White House at an unknown time between 7:26 am and 7:55 am. The Oval Office taping system captured this recording, which is known as Conversation 500-001 of the White House Tapes.","locationCode":"OVAL","recordingDevice":"Oval Office","latitudeEstimated":38.8974,"longitudeEstimated":-77.0374,"chronCode":1,"chronRelease":"First Chronological Release","chronReleaseDate":"5-Oct-1999","aogpRelease":null,"aogpSegment":null,"lastModified":"2015-07-27T17:04:10.235Z","findingAid":"Conversation No. 500-1\n\nDate: May 18, 1971\nTime: 7:26 am - unknown before 7:55 am\nLocation: Oval Office\n\nThe President met with Alexander P. Butterfield.\n\n     Michael J. (“Mike”) Mansfield amendment\n         -Developments in Congress\n\nButterfield left at an unknown time before 7:55 am.","filename":["500-001.mp3"],"tapeStart":"00:02:05","tapeEnd":"00:04:27","participantsList":["Nixon, Richard M. (President)","Butterfield, Alexander P."],"prevCode":"499-024","nextCode":"500-002","transcript":[{"start":0.03,"end":1.38,"text":"That's it."},{"start":1.4,"end":8.08,"text":"That's the latest status report on the Mansfield Amendment and how things are developing in the Congress this morning."}],"aiSummary":{"text":"President Nixon met with Alexander P. Butterfield to review the latest developments regarding the Mansfield Amendment in Congress. The discussion focused on evaluating the status of this legislative proposal and its progress through the congressional process. No further actions were recorded in this brief exchange.","topics":["Mansfield Amendment","Congress","Legislative strategy","Alexander Butterfield","Vietnam War policy"],"generatedAt":"2026-04-06T22:18:20.423Z"},"topicSlugs":["mansfield-amendment","congress","legislative-strategy","alexander-butterfield","vietnam-war-policy"],"audioDurationSec":10,"audioFiles":[{"file":"500-001.mp3","bytes":404167,"durationSec":9.96,"bitrate":324743,"missing":false}],"audioIsShared":false,"audioProbedAt":"2026-09-18T02:19:49.346Z","findingAidSource":"nixonlibrary.gov subject log (2024-05), reslice-v2","findingAidUpdatedAt":"2026-09-18T08:43:51.620Z","audio":["https://nixon.nyc3.digitaloceanspaces.com/audio/500-001.mp3"],"url":"https://www.easynixon.org/tapes/500-001","nixonLibraryUrl":"https://www.nixonlibrary.gov/white-house-tapes/500/conversation-500-001","license":"Public domain (U.S. Government work). AI-generated fields (transcript, aiSummary) are provided as-is without warranty."}