This is laughable:
http://fivethirtyeight.com/features/dont-worry-about-the-electoral-college-math/
Do you realize what's going on? Trump is SO WEAK among the general electorate that even though he has already secured sole claim to his party's nomination, he can't even defeat Hillary in a general despite that her current GE popularity is stunted by her still (theoretically) potential opposition. She's +4 in spite of this.
It's unreal. I think Silver's 25% chance for Trump is too great. He's not even winning worst-case scenarios.
Trump hasn't once established a lead even at the peaks of his momentum. Hillary has never fallen below him even in her troughs.
He doesn't stand a chance. But have fun. It doesn't matter at this point. The GOP electorate made its bed.