When leftist name callers, and we're beginning to see it with the hate-trump crowd, start name calling out of control, you ask yourself 'why that particular name'. Invariably, you find that when they reach into their internal name bucket for a name, that bucket is filled with names they know apply to themselves.
There are a million things you can call Trump that apply. Con artist just doens't stick, or even belong in the room. So you aks 'where did that come from' ... it comes from the name callers knowledge of himself.
Rubio more than any other candidate in history, perhaps even Obama -> sold out more completely and faster, sold out every future ability to make his own choices -> to be the E's front man / con man.
I suspect he will be gone entirely from the political scene in 3 years.
In 15 years, he'll be on one of those 'what ever became of that child actor' shows.
We have plenty of people right here, just like the left, who call Trump a “con artist.”