MADISON, Wis. -- A new campaign ad by Gov. Jim Doyle is drawing criticism over its use of TV newscasts.

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The ad takes Doyle's Republican challenger, U.S. Rep. Mark Green, to task for vowing to fight a state Elections Board decision last week that he must return nearly $468,000 in campaign contributions collected from political action committees. Green has vowed to argue his case to keep the money in court. Green said he has done nothing wrong.

The ad starts with video of WISC-TV anchors Mark Koehn and Katy Sai reporting on the board's vote. It also excerpts a report by another Madison TV station.

WISC-TV objects to the airing of the ad because it uses a news clip from "Live at Five" and implies an endorsement of Doyle.

During the clip, Sai reports that "the state Elections Board says Republican Mark Green must get rid of more than $400,000 of money he raised while in Congress."

Station manager Tom Bier said that using the video makes it appear that the station is supporting Doyle and he asked the campaign to either revise the ad or not run it in Madison.

Bier said that it hurts the credibility of the station and anchors.

"It's really very important that the public and our viewers see them as being impartial," Bier said. "And by injecting these faces into this campaign, what they're doing -- in our view -- is putting doubt into the eyes of our viewers."

Doyle campaign spokesman Anson Kaye said that there are no plans to change or pull the ad.

Kaye said that the intent of the ad was to highlight what happened to Green and not make it appear that the station supported Doyle. Campaign officials said that the controversy surrounding Green's PAC money is a breaking news story in the race and it's best explained by simply portraying the news coverage, WISC-TV reported.

Bier said that the ad will start running on Friday. Because of election rules, the station can't refuse to run the ad.

Green's campaign manager Mark Graul said the latest ad shows Doyle's campaign is desperate and dirty. Graul said Doyle is trying to divert attention from his own problems, including an ongoing investigation into how his administration awards contracts.