Why Keynes was wrong

but Congress will always love him, by Dick Armey:

A father of public choice economics, Nobel laureate James Buchanan, argues that the great flaw in Keynesianism is that it ignores the obvious, self-interested incentives of government actors implementing fiscal policy and creates intellectual cover for what would otherwise be viewed as self-serving and irresponsible behavior by politicians. It is also very difficult to turn off the spigot in better economic times, and Keynes blithely ignored the long-term effects of financing an expanded deficit.

It's clear why Keynes's popularity endures in Congress. Intellectual cover for a spending spree will always be appreciated there. But it's harder to see any justification for the perverse form of fiscal child abuse that heaps massive debts on future generations.