Did the Keynesians Get It Wrong in Predicting a Recession in 2013?

I have had several readers send me a blogpost from Scott Sumner saying that the Keynesians have been dishonest in not owning up to the fact that they were wrong in predicting a recession in 2013. The argument is that supposedly us Keynesian types all said that the budget cuts and the ending of the payroll tax cut at the start of 2013 would throw the economy back into recession. (Jeffrey Sachs has made similar claims.)

That isn't my memory of what I said at the time, but hey we can check these...