Good call: Several Democrats said that what polls have found to be an overwhelming sentiment among Democrats - that the nominee have the ability to unseat Mr. Bush - would prove to be a big obstacle to Mr. Nader. Bad call: It also means, Democrats said, that they could bring lawsuits to knock Mr. Nader off state ballots without risking the kind of backlash that typically greets such litigation, often in the form of newspaper editorials and criticism from voters. I think the Democrats in question would find that many more folks believe in urging candidates whose candidacies they believe will be detrimental not to run than in exploiting institutional power and regressive policy to create legal barriers to others voting for them.