I still remember Krugman on ABC This Week (Sunday show) and George Will quoted him directly from when he was preaching that the national debt would kill this country, it was from back when GWB was POTUS, and Krugman actually called citing past quotes from him an ad hominem attack.
Fortunately its documented here when he pulled the same crap on Scarborough .
Krugman: Quoting What I Said in the Past Is an Ad Hominem Attack (By Noel Sheppard | March 5, 2013 )
That guy has nerve for sure.
You have to be some sort of masochist to watch either Krugman or Moyers, nevermind both.