Amash’s statement should be seen as a ringing endorsement of McCarthy, when you consider he left the GOP and finished his career in Congress as a member of the Libertarian Party.
I don’t see it as an endorsement at all. He’s announcing, at a time when McCarthy is being challenged, that McCarthy is a bad guy, in Amash’s experience. He provided sine string opinions which could easily align with the reasons for Matt Gaetz filing a Motion to Vacate.