I would think this could work to Trump’s favor.
Yes. The same way the vicious Romney speech worked in his favor. The same way the pompous NeverTrump National Review people work in Trumps favor. There are some things that just rub people the wrong way.
Collusion.
It has a sinister ring to it.
Aside from the horrible optics, do these people think actual voters are commodities that can be traded?
Is the typically not-overly-religious suburban Kasich voter in Indiana really going to suddenly support the oily snakehandler? Are Cruz voters in New Mexico going to go in with an open-borders candidate? It is LUNACY.
Both the Kasich voter and the Cruz voter have to "cross over" Trump to get to the other side. A whole bunch of them are not going to make it all the way over.