https://thehill.com/homenews/house/4596862-massie-backs-greene-effort-to-oust-speaker-johnson/Massie has joined MTG's push to vacate Mike Johnson. Some Democrats have expressed willingness to bail out Johnson, so the motion to vacate may fail on the floor even if Johnson loses more Republican votes. What's notable is that both Massie and MTG supported McCarthy on all of his speaker votes.
https://www.govtrack.us/congress/votes#_In other Massie news, he went on a spree of lonely no votes throughout yesterday and today. There were multiple votes relating to Israel/Iran in which overwhelmingly passed the House. Massie was the only Republican to oppose them, alongside a small handful of Democrats.