Yup, "unwitting dupe" is one good way to describe him. I can think of a few more unmentionables.....
For the record, I did wade through every bit of this interview and I am surprised this guy's wife is not a suicide by now. If I had to listen to someone like that every day of my life..... AAAAAEEEEEIIIIIAAAAHHH......
How about a 'witting dupe' instead? I think this lib, a former ambassador, is a concious agent of the left wing of the Dem party.