"Why are Louisiana Republicans trying to take down this billboard?" the ad's voiceover says. "Maybe they don't want you to know that when Gov. Jindal refused to expand Medicaid, he said 'No' to $1.65 billion in federal funds and denied health care to 242,000 people."
Dardenne alleged that the sign, which plays on the state's "Pick Your Passion" tourism slogan, was confusing and that the state had registered the slogan as a trade service.
MoveOn has refused to take down the sign.
The five-figure ad buy will place the 30-second spot on TV stations in the Baton Rouge area.