If it’s true it’s because he needs Wisconsin’s electoral votes in the fall. This is about winning the Presidency not a spat with Ryan. If he wins there will be plenty of time to argue with Ryan later.
The fight with Republicans is over for the time being. Trump needs to be all about defeating Clinton. There will be plenty of time for Republicans to argue over policy later.
Trump is asking a lot of people who don’t like him to vote for him because Clinton is worse. If he wastes his time fighting in Republican primaries they have no reason to vote for him.
Every post you make is silly. You fail to see the big picture. Trump is running anti establishment campaign How could he possibly endorse Mr. Establishment? He looks foolish and disingenuous.