That's still way too high. 50% is coin flip chance. They have him at like 30%. That is an unacceptable amount of risk for the gravity of the situation.
Well remember they are by far the most favorable. Other robust empirical models give Trump about a 10% chance.
I kind of agree that even a 10% chance is too high considering the thing we are betting on is a mentally unstable sociopath as the most powerful person on earth, but my strong suspicion is that things are going to be just fine.