I am sure that Trump realizes that if he screws up the election, that he will undoubtedly be putting a target on his back. He may have an ego rivaling Obama's but he is not stupid. If he is as smart as he thinks he is, then he will eventually bow out of the race.

From what I have seen, he puts out more dirty slurs toward the GOP than the Dems. Makes one wonder exactly whose side he is on. Of course, his own.