{"source":"kalshi","id":"KXBIDENBOOK-26JUN10","ticker":"KXBIDENBOOK-26JUN10","slug":"KXBIDENBOOK-26JUN10","title":"When will Biden release his presidential memoir?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-06-09T19:00:00Z","end_date":"2027-04-08T14:00:00Z","closed_time":null,"volume":4492.01,"volume_24hr":0.0,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":15.805449485778809,"liquidity":null,"open_interest":3647.53,"categories":["Politics"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Before Apr 1, 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