spruce:A personal, vindictive attack is not criticism, constructive or otherwise.. Had Shuster attacked either Hillary or Chelsea's position on issues, than sure, fair game. That's not what he did though, now is it.
What Shuster did was suggest that Hillary Clinton was trotting her daughter out in an inauthentic way in order to USE her cache with younger voters.
Admittedly, Shuster used colloquial and perhaps uncouth terms to make this criticism, but understanding the modern usage of "pimping out" and from the context, this is clearly what Shuster meant.
You don't think that observation, is a valid criticism? I have no qualms saying that Obama was pimping out Ted Kennedy, in order to court White, Chowder-eating, New Englanders. I wouldn't have been offended had Shuster made that reference and, frankly, given Ole' Teddy's history with the prostitutes maybe that would have been even worse.
So yeah, I do think, it was a valid criticism, albeit stated in inadvisable language.