A new ad from liberal activist group Americans United for Change and labor union AFSCME hails the passage and signing of the economic stimulus package, using footage of President Obama signing the bill in Denver.

The ad will run nationally on MSNBC and CNN. It was produced less than four hours after Obama signed the stimulus, according to Americans United for Change.

In it, the groups encourage viewers to thank Obama "for putting jobs first" by successfully passing and signing the package.

Americans United for Change and AFSCME have aired TV and radio ads throughout the stimulus's legislative journey, pressuring 13 GOP senators with TV ads in their home states. The groups are part of the Campaign for Jobs and Economic Recovery, a massive coalition of liberal groups formed in December to advocate for Obama's stimulus.

Watch the ad below: