Not to mention that his casinos and hotels are 80% staffed with immigrants. Wanna bet they're all legal?
Trump looked at the candidates in both parties and decided the Republican party would be the easiest to hijack. All he had to do is get 24 to 30% of the vote in the early primaries and he'd be the favorite. The only time he has considered office he was going to run as a third party candidate, and most of his donations have gone to Democrats. This whole thing is the biggest hoax ever pulled. Any time now, Ashton Kutcher is going to jump out and says, "USA, you just got punked."
One thing that's been interesting to me lately has been all the willing accomplices in this. CNN has been in the tank for Trump winning the Republican nomination from the beginning. In the conservative media where you would think they wouldn't be propping up someone who's not that conservative like Trump, Drudge Report, Breitbart, and Daily Caller have pretty much been Trump PR outlets.
Rush Limbaugh and Sean Hannity have been propping him up too, although for them, it makes a lot of business sense. They get Trump inflated ratings for their shows in the near term the more they talk about him and defend him, and in the long term, they get to trash Hillary for four years while still getting to bemoan that the Republicans haven't nominated a "true" conservative since Reagan.
It's bizarre that all of these outlets that ought to be bringing down a complete dangerous fraud like Trump are very much responsible for promoting him and keeping him afloat.