Brian MelendezEven as Democratic Party organizations roll out videos and radio ads urging Norm Coleman to give up his claim on his old U.S. Senate seat, the head of the Democratic-Farmer-Labor party made this pronouncement about the Republican’s election-contest appeal to the Minnesota Supreme Court: “It’s over.”

Video after the jump.

DFL chair Brian Melendez’s assessment of Coleman’s chances on appeal before the Minnesota Supreme Court came after he critiqued the arguments in a preliminary filing yesterday.

Repeating a line of a attack made by Franken attorney Marc Elias, Melendez pointed out that only one of five Coleman claims would add rather than remove votes from last fall’s election — hardly the enfranchisement Coleman’s camp is espousing.

Melendez disputed the notion that the post-election drama has become a “debacle.” The system is working well, he said — it’s just that people in “the Coleman campaign are exercising bad judgment in how far to push their rights.”

Still, Coleman can litigate “to his heart’s content,” said Melendez — as long as Minnesota’s second U.S. Senator gets seated in the meantime.

The DFL is hoping to stir such sentiments with its “Give It Up, Norm” campaign. Melendez unveiled the campaign’s second Web video (see below) at a State Capitol press conference today.

Melendez claimed to have received “a significant blip” of e-mails from “Coleman voters out there who are tired of the litigation.” When pressed, he said that by “blip” he meant a dozen.

Asked about Gov. Tim Pawlenty’s role, Melendez also said “the state executive branch has nothing to do with this” beyond the “ministerial” task of issuing an election certificate. Melendez also said instant runoff voting would have broken Franken-Coleman logjam by distributing ballots for Independence Party candidate Dean Barkley between the two leading vote-getters.

Here’s the DFL’s new Web ad, titled “Norm Would Step Back.”