I will not bet in this market due to its subjective nature. This resolves based on my perspective at the end of 2025 (if there is ambiguity, I may/will consult with other Manifold superusers).
Clear things that would get this to resolve YES:
-Trump wins, Musk becomes clearly disillusioned by right wing politics and starts heavily criticizing Trump and aligning himself with more centrist or left-wing politics or figures.
-Harris wins, Musk pivots and aligns himself with her or endorses her as a president.
-Musk retracts his endorsement of Musk before the election happens.
-similar things in that vein
Things that would be inadequate for a YES resolution:
-Musk disagrees with Trump on election denialism but still aligns himself with the MAGA/Trump movement.
-Musk publicly admires some executive action or bill passed by Harris or the democratic party.
-Musk criticizes one of Trump's policies.
I would like to see some clear evidence of a political realignment for a YES resolution, even if that realignment is just from right-wing/MAGA/Trumpism to Musk's previous fairly centrist politics.