Romney will claim that the effect of the stimulus has been to destroy jobs. As it has in the past, the Romney camp will justify this by pointing to a bogus metric — the net jobs lost on Obama' watch. That includes the hundreds and hundreds of thousands of jobs lost before the stimulus went into effect. Really: The Romney camp’s claim is that we can calculate that the stimulus destroyed jobs overall with a metric that factors in all the jobs destroyed before the stimulus took effect. That's not an exaggeration. It really is the Romney campaign’s position. It’s time to ask Romney himself to justify it.

The Romney camp will also begin claiming that Obama has “never created a job.” Will anyone ask Romney about the two dozen straight months of private sector job creation we’ve seen?

And if Romney is now going to start hitting individual stimulus projects, it’s also time to ask him what he would have done if he had been president in January of 2009. He has previously said positive things about stimulus spending. Are those no longer operative? Would Romney really not have proposed any government spending to stimulate the economy when it was in free fall? What would he have done instead? This question is absolutely central. How about asking it?