In the battle over voting rights, an idea is starting to move around in Republican circles: designated police forces designed to hunt down voter fraud. On the basis of available evidence, this is a solution in search of a problem. It is another example of what comes from former president Donald Trump’s false claims about the 2020 election. Florida Gov. Ron DeSantis (R) has put a proposal for such a force in his new budget. In Georgia, former U.S. senator David Perdue, who is running as a Trumpian candidate in the GOP primary for governor against incumbent Gov. Brian Kemp...