Paul Krugman, a Nobel Prize winning economist not noted for hyperbole, writes:
A not-so-funny thing happened on the way to economic recovery. Over the last two weeks, what should have been a deadly serious debate about how to save an economy in desperate straits turned, instead, into hackneyed political theater, with Republicans spouting all the old clichés about wasteful government spending and the wonders of tax cuts.
It’s as if the dismal economic failure of the last eight years never happened — yet Democrats have, incredibly, been on the defensive. Even if a major stimulus bill does pass the Senate, there’s a real risk that important parts of the original plan, especially aid to state and local governments, will have been emasculated.
Somehow, Washington has lost any sense of what’s at stake — of the reality that we may well be falling into an economic abyss, and that if we do, it will be very hard to get out again...
It’s time for Mr. Obama to go on the offensive. Above all, he must not shy away from pointing out that those who stand in the way of his plan, in the name of a discredited economic philosophy, are putting the nation’s future at risk. The American economy is on the edge of catastrophe, and much of the Republican Party is trying to push it over that edge.
If you want the economics behind this assessment read Krugman's entire op ed.