I basically agree with Jonathan Chait's post on whether Barack Obama should be going all Truman on behalf of a stimulus bill that wouldn't pass Congress. But I think he's seriously off his usual game with a subsequent post that basically concludes that Republicans will believe in Keynesian stimulus the next time that they hold the presidency during a downturn.
It's hard to know what people sincerely believe, but I think Chait has this one wrong. Republicans have consistently called for tax cuts especially for rich folks, spending cuts on various domestic programs, and most spending on the Pentagon, regardless of economic conditions. The policies will be the same; only the rhetoric and the rationale will change -- as Chait himself has demonstrated many times in the past. And I think the record of 2008, with George W. Bush still in the White House, confirms it: there was no appetite in the White House or among Republicans in Congress for a large stimulus then, either.
See also a great catch by on of the Economist bloggers of a claim by a Tea Partier that military spending is important during a recession because of all the jobs.