This guy says that the stimulus was very clean and defensible spending.  Just because it wasn’t fraud doesn’t mean it was well spent.  I don’t think there were even many people saying the program was actually fraudulent.  The question of waste isn’t a GAO determination.  It’s a political and normative characterization, so I am not convinced on that.

Also apparently, the guy is a Keynesian, and he wishes we would have made the stimulus a lot bigger and spent it immediately and less carefully.  There are a lot of smart Keynesians out there, so whatever.  But, there are a lot of smart other kinds of economists, and nobody’s proven the multiplier effect yet or learned everything about it.  So, that’s the limit of this guy’s persuasiveness.