What do I mean by saying that this is already a Republican economy? Look first at total government spending — federal, state and local. Adjusted for population growth and inflation, such spending has recently been falling at a rate not seen since the demobilization that followed the Korean War.

How is that possible? Isn’t Mr. Obama a big spender? Actually, no; there was a brief burst of spending in late 2009 and early 2010 as the stimulus kicked in, but that boost is long behind us. Since then it has been all downhill. Cash-strapped state and local governments have laid off teachers, firefighters and police officers; meanwhile, unemployment benefits have been trailing off even though unemployment remains extremely high.

Over all, the picture for America in 2012 bears a stunning resemblance to the great mistake of 1937, when F.D.R. prematurely slashed spending, sending the U.S. economy — which had actually been recovering fairly fast until that point — into the second leg of the Great Depression. In F.D.R.’s case, however, this was an unforced error, since he had a solidly Democratic Congress. In President Obama’s case, much though not all of the responsibility for the policy wrong turn lies with a completely obstructionist Republican majority in the House.