Republican Ohio gubernatorial candidate Vivek Ramaswamy is doubling down on a controversial ad featuring his Democratic opponent Amy Acton’s estranged mother, but it seems to be catastrophically backfiring on him as his odds of winning the election have cratered. In the ad, Donna Arthur, the candidate’s estranged mother who lost custody of her and her younger brother when Acton was 12, lambasts her daughter as a “liar” and urges viewers not to vote for her. Acton has publicly spoken about her troubled childhood for years, well before she ran for office, including the reason her mother lost custody: documented neglect...