If Trump does not go to Cleveland with 50% plus 1 delegates you can bet your house it will happen. It was planned years ago with the intention of stopping Cruz and replacing him with Bush but they will kill two birds with one stone and eliminate Trump as well.
If they do not settle on Rubio for some reason they will bring in an outsider. Romney, Ryan or ????.
What is just as interesting is how the DNC will get rid of Bernie if Hillary is indicted and they want to slip in Biden in her place.
Tactics and strategies with potential outcomes could make this election cycle a hell of a book.
Well yes, Trump will need a strong enough showing. This could yet materialize.
And, something like Trump getting Rubio and/or Carson to throw to him would immensely help... that changes those delegates.
Carson has already proposed to be veep. Could Trump take Rubio under his wing? There have been weirder things.