The drug testing results are not as clear as what they may seem though.

Related plants can leave chemical traces that are close enough to give false positives, especially for a test that isn't designed to distinguish between them. Tobacco is part of the nightshade family, so related Old World plants might give a false positive. Mandrake can also leave similar chemical (iirc alkaloid) traces to those of cocaine.

He's also got a very good track record in predicting electoral outcomes.

Um, he predicted that we would have a Republican House and Senate and then got whiny and defensive when the NPR reporter pointed out that the polling didn't support that prediction. Iirc, he said "You've got your math - I've got THE math."