On t.v., he needs 18 months to put together a coherent sentence. I still think he’s a sham. If you read his bio on Wikipedia (I know...), except for his investment banking company, it’s VERY impressive. And it is quite possible, that his first PhD. advisor, very well COULD have had anti-American bias; I doubt that’s all that uncommon.
Who knows for sure? Either way, he’s an odd-acting character.