People just show how little they actually know about probability and models when they say this stuff.
So what are his error bars? How many standard deviations is he out? What happens if we feed different numbers into the machine - ie, assume a neutral electorate? What are his assumptions regarding states and their margins?
I mean, you wouldn't be asking these questions if you followed the site and podcast more rigorously.
But Trump's chances go up to almost 70% if you give him PA.
If you give him Wisconsin it goes up even more.