If the latest polls are correct and John Kerry will clinch the Democratic nomination tomorrow by eliminating his last serious opposition (John Edwards) in Tennessee and Virginia, it will again confirm the spoiler role that Wesley Clark has played throughout the race. If Edwards had beaten Clark in Oklahoma last week, it really would have created a two-man race and given Edwards at least a chance of stopping Kerry. There’s nothing to mourn here on the part of most Republicans, as I think Bush is marginally better off running against Kerry than against Edwards, but it does invite the old questions about why and how Clark got into this campaign in the first place.