Traders assign a 98% probability against Donald Trump traveling to space before the end of 2026 due to the absence of any announced plans, training timelines, or mission manifests that include the sitting president. At age 80, standard astronaut medical and physical requirements present major barriers, while White House priorities center on lunar return targets for 2028 and broader NASA policy rather than a personal flight. Recent public comments by Trump referencing Artemis II astronauts reflected interest in space achievements but produced no concrete scheduling. Remaining months in the calendar year offer little window for the necessary approvals, security arrangements, or commercial crew integration. The only realistic paths to a shift would involve an unforeseen private-sector opportunity or executive directive announced and executed in the final quarter, both of which remain outside established procedural norms.