His timing in coming out and joining Trump on the stump was very good. Did you notice that the "letter signed by 200 malcontent Republicans" was news only -before- the letter was actually sent, and that the letter (and the "Republicans hate Trump") story disappeared almost instantly.
By the way, as an aside, the drivebys demanded to see what was in the trailer!They wanted to make sure it would help the homeless.Amazingly they seemed satisfied.
I'm sure they would have done the same to Obama or Hitlery. Talk about a severe double standard! Just too much.