So you have a better explanation for Ryan’s seemingly dual role as hot and cold on Trump...
When has Ryan been “hot” on Trump? His limp-wristed endorsement was tepid at best.
Two more items for you to think about.
One, when Ryan called Trump a racist, R was repeating a Dem/liberal LIE/smear. Trump is not a racist, nor were his factual comments re the LaRaza judge racist. How does it help down ticket pols to have the GOP Speaker repeating and validating Dem LIES?
Two, why does Ryan undercut Trump more than he attacks Mrs. Clinton? What would help down ticket Republicans more: to have their own Speaker backstabbing their own nominee, or for their Speaker to relentlessly point out what a disaster for the country Hillary would be?