Facing intense criticism for promoting false claims that Haitian immigrants in Springfield, Ohio, are abducting and eating other residents’ pets, Sen. JD Vance has tried to pivot by blaming Vice President Kamala Harris and the influx of Haitians during her vice presidency for a variety of broader social issues in the city. Some of those issues have been widely acknowledged, such as a strain on the local health care system. But Vance, the Republican vice presidential...