The comment ufl posted above I think sheds light on what he
by wpkirish (2024-02-16 13:34:36)

In reply to: Machin just announced that he is not running.  posted by Irisharab


thinks the impact would be.

1. Does not want to be a spoiler
2. Now is not the right time (presumably for a third party)
3. Democracy is at stake.

Presumably he believes a third party run most likely benefits Trump and does not want to be responsible for a second Trump presidency.