“He is such a champion of the Constitution that he voted to give Obama Fast Track Authority, by passing the Senate’s ability to block the attack on U.S. sovereignty. “
I will have to look into that. Somehow I trust his instincts wrt the Constitution more than a one-sentence summary of something that was much more complicated.
His defense of it is that every President since FDR had had it.
The reason for that is these complicated trade deals won't get passed if the Senate can add amendments to them.
So, he sold out the Constitution for expediency.