The Kennedy campaign has confirmed to me that #[0] is in fact on NOSTR with the following PubKey:
npub1hq0kkf67h5n63uz0l5zac94u73jnjudn3ryh3aahagx3qvwq0qq8wf9mp
SchreckReports / Ben Schreckinger
npub1vz…fq7se
2023-05-10 20:14:52 UTC
Author Public Key
npub1vz4yqatycf5tlk4swknndaryrd84xs266a2xtp6ucvpj7pm0tmkqzfq7seSeen on
wss://nos.lol