This should probably be in the Off Topic board...
The reason why Trump has so much traction is because the media won't shut up about him. As long as he is being loud and offensive (to some), he is taking away attention from the candidates that the media support, or have a good chance of beating their candidate. They are trying to set us up for another Bush-Clinton ticket; notice how quiet those two have been recently? Yeah, they're just kicking back and enjoying the sideshow.
I'm hearing a lot of comments to the effect of, "I like Trump because he is saying what I want to hear." Exactly. Trump is a salesman, and he's playing everyone like a fiddle. Everyone seems to have forgotten how many times he's changed his political affiliation over the years, the support he's given to the Clintons, his comments about the economy always being better with a Democrat president, or his use of imminent domain to steal land for his hotels and casinos. He knows how to game the system to get what he wants. Don't think that he hasn't bought his influence and power; everything has a price to him, and everything can be sold.
I sure hope he doesn't have a chance, but the way this country is going... We have the best field of presidential candidates in my lifetime, and right now the best are being overshadowed by an egotistical blowhard whose entire campaign so far can be boiled down to "I'm rich, go f**k yourself." We still have an interminably long time before the election, though. A lot can happen between now and then.