A former ambassador in the Clinton administration, Marc Ginsberg, knocked Secretary of State John Kerry for sounding "like a used care salesman" earlier today on national television. Watch here:

"Well, it's surprising to me that at this point in time, what is leaking out here is this so called side and secret agreements that seem to be poisoning the atmosphere. And Secretary Kerry is beginning to sound like a used car salesman who's not revealing what's underneath the chastity of the car, whether it's rusty or not," said the former Clinton ambassador. 

Ginsberg went on to say that "secret annexes" could "torpedo this deal."

Ginsberg worked as foreign policy advisor in the Jimmy Carter administration and as ambassador to Morocco for the Clinton administration.