I think the 2 - 3% are staying in to see what the real numbers are when some of the front runner outsiders collapse or leave or whatever. That is the only reason they are staying in with 2 - 3 %
I believe that Gonzo is correct; I’ve seen that sentiment around a lot.
In my case, I’d like to modify it to, “Trump can win without selling out.” Whereas most other candidates tend to be beholden to big donors, bleh.