Greg says:
They're either too stupid to know, or too mendacious to admit, that their program has been an abject failure over the last 30 years.

Actually, their program has been hugely successful, in that they got what they wanted: even more of the money concentrated in the hands of a few. They've also, apparently, been successful at convincing a large portion of Americans that cut and slash is good for normal citizens. What they are too mendacious to admit is that they don't really care about anyone who isn't a billionaire.