Ah yes.  The fabled "leadership" of Trump constantly touted by Trump apologists.  He not only fails to seek out any common ground or downplay any differences he makes it the forefront issue and then threatens those who disagree with him.  To Trump all Republicans serve him and his wishes.
That's not leadership.  That's bullying.
I almost feel sorry for Trump because he seems simply incapable of ever learning from his mistakes.  He's picking a counter-productive fight with arguably the most obstinate segment of the Republican party made of mostly Tea Party members who campaign against compliance or compromise.  Even if he "wins" he's alienating his own party members, creating undue resentment and demonstrating how others are not allowed to think for themselves or do their job of representing their constituency rather than Trump.  And then there is still the next fight with the Senate where the Republican majority is even smaller.