It looks like Al Franken is finally using his campaign ads to do what he does best: Comedy.You really need to watch his latest spot, because it's pretty damn funny. It features a novelty talking fish toy, informing the viewer of Republican Senator Norm Coleman's links to indicted GOP Sen. Ted Stevens and Big Oil businessmen:"Now one of the oil guys that Norm went fishing with has been convicted of bribery -- and Norm refuses to return the money," the fish says. "Something smells fishy, and it ain't just me."Franken has taken a serious tone for most of his campaign ads in his uphill fight against Republican Senator Norm Coleman, in an effort to get voters to view him as a more serious figure. But now Franken may be going back to his roots, thankfully.