A Pennsylvania judge decided today not to issue a preliminary injunction of his state's new voter ID law, meaning that the requirements will be in place for the November presidential election unless the Pennsylvania Supreme Court intervenes. But the controversy will continue. GOP lawmakers argue that the law is needed to protect the integrity of voting. Others contend that the law is really aimed at reducing turnout among minorities and the poor. (The GOP House leader in Pennsylvania once boasted that the new law "is going to allow Gov. Romney to win the state.") A national study released this week found only 10 cases of alleged in-person voter impersonation since 2000. That amounts to one case per every 15 million registered voters nationwide. An estimated 1.3 million voters in Pennsylvania don't have the required ID.