Attorney General Eric Holder, who announced his resignation on Thursday, leaves a dismal legacy at the Justice Department, but one of his legal innovations was especially pernicious: the demonizing of state attempts to ensure honest elections. As a former U.S. attorney general under President Reagan, and a former Ohio secretary of state, we would like to say something that might strike some as obvious: Those who oppose photo voter-ID laws and other election-integrity reforms are intent on making it easier to commit vote fraud. That conclusion is inescapable, given the well-established evidence that voter-ID laws don't disenfranchise minorities or reduce...