Here is the anticipated Americans United for Change/AFSCME ad that features footage from the signing of the economic stimulus package today.

A spokesman from the group didn't immediately get back to me about where/when/on what channels this is running or how much money is behind the ad buy. Marc Ambinder reports that the ad will run on national cable and in Washington, D.C.

UPDATE: Jeremy Funk, a spokesman for the group, confirms Ambinder's report. He says the ad will be on national cable (CNN and MSNBC) and in the D.C. market. It will go up tomorrow and run through the end of the week.