This should be fun:

Fox News Network has field a lawsuit against Democratic Senate hopeful Robin Carnahan over use of station footage in an ad attacking her Republican rival.
Carnahan’s commercial features a 2006 interview by Fox anchor Chris Wallace with Roy Blunt. At the time, Blunt’s bid to become House Majority Leader was taking criticism because of his ties to lobbyists — connections Wallace was showcasing to viewers.
The lawsuit filed Wednesday in Kansas City federal court says the “smear ad” infringes on a Fox News copyright, improperly misappropriates Wallace’s likeness, and created a false impression that Wallace had endorsed Carnahan.
“The Carnahan Ad is designed to make it appear as if Wallace – a trusted journalist – is instead speaking as a campaign operative,” the suit says.

From Carnahan’s campaign website: “The interview with Roy Blunt that Fox News doesn’t want you to see has been temporarily removed. Check back soon.”