This Amash event struck me as contrived right from the start. My suspicious mind tells me, well is screaming at me that because he's dirty, Trump also must know he's dirty, and Shifty Schitt knows it too, which is why he tucked his tail and put some distance between him and Amash.
I believe this is a bench mark being set, positions being forced to be set. Look at Romney, he has a new found shine for Trump!