On April 23, Hillary Clinton, with a net gain of 214,000 Pennsylvania votes in her back pocket, set off an election firestorm by claiming she had slipped ahead of Barack Obama in the popular vote total. “I’m very proud that as of today, I have received more votes by the people who have voted than anybody else,” she told a rally in Indianapolis. Journalists immediately fact-checked the statement, pointing out that Clinton’s math relies on counting votes from Florida and Michigan. (Of course, the DNC has stripped those states of their delegates for scheduling their primaries before the party’s calendar...