Calling a president a Keynesian is an insult-big time-to his intelligence as in "he has no intelligence".
Keynesian economics is stupid period like Keynes himself.
Nixon bragged he was a Keynesian. Even when Milton Friedman wrote editotials explaining just what Keynesian econ is and how stupid it is, Nixon still did not get it.
Neither does Obama. Keynesian has never worked and never will.