Chait suspects Obama would steal it:

[I]f you think about it, having a real proposal to boost the short-term economy would be counterproductive to Romney’s chances of winning. Romney’s advisers — and, when speaking off the cuff, Romney himself — all believe in a basic Keynesian view of the world. They advocate that short-term increases in the deficit will boost demand and increase growth. If Romney came out with a plan like that, Obama could just grab hold of it and demand that Congress pass it (and Republicans would be hard-pressed to explain why they were voting down their own nominee’s plan.) Romney could try to pair it with long-term changes Democrats would hate, but Obama could just pick out the short-term stuff and punt on the long-term parts. And if a plan like that passed, it would boost the economy and harm Romney. So he won’t do it. 

The sabotage meme gets more credible by the day, doesn't it?