Senator John Fetterman has shown no public signals of intent to leave the Democratic Party before the June 30 deadline, and the brief remaining window makes any switch highly improbable. He continues to participate in Democratic caucus activities and has not issued statements indicating a shift in affiliation, consistent with his pattern since taking office. Party switches by sitting senators remain rare events without major prior indicators such as prolonged conflicts with leadership or formal announcements. Traders assign a 95.5 percent probability to the outcome not occurring because no legislative, personal, or political developments have emerged to suggest an imminent change. Late developments that could still alter this consensus include an unexpected public announcement by Fetterman or a sudden escalation in internal party disputes, though neither appears likely on the current timeline.