This is especially true if you focus on private-sector jobs. Overall employment in the Obama years has been held back by mass layoffs of schoolteachers and other state and local government employees. But private-sector employment has recovered almost all the ground lost in the administration’s early months. That compares favorably with the Bush era: as of March 2004, private employment was still 2.4 million below its level when Mr. Bush took office.

Oh, and where have those mass layoffs of schoolteachers been taking place? Largely in states controlled by the G.O.P.: 70 percent of public job losses have been either in Texas or in states where Republicans recently took control.

Which brings me to another aspect of the amnesia campaign: Mr. Romney wants you to attribute all of the shortfalls in economic policy since 2009 (and some that happened in 2008) to the man in the White House, and forget both the role of Republican-controlled state governments and the fact that Mr. Obama has faced scorched-earth political opposition since his first day in office. Basically, the G.O.P. has blocked the administration’s efforts to the maximum extent possible, then turned around and blamed the administration for not doing enough.

So am I saying that Mr. Obama did everything he could, and that everything would have been fine if he hadn’t faced political opposition? By no means. Even given the political constraints, the administration did less than it could and should have in 2009, especially on housing. Furthermore, Mr. Obama was an active participant in Washington’s destructive “pivot” away from jobs to a focus on deficit reduction.

And the administration has suffered repeatedly from complacency — taking a few months of good news as an excuse to rest on its laurels rather than hammering home the need for more action. It did that in 2010, it did it in 2011, and to a certain extent it has been doing the same thing this year too. So there is a valid critique one can make of the administration’s handling of the economy.

But that’s not the critique Mr. Romney is making. Instead, he’s basically attacking Mr. Obama for not acting as if George Bush had been given a third term. Are the American people — and perhaps more to the point, the news media — forgetful enough for that attack to work? I guess we’ll find out.