@cbsnews: Republican gubernatorial candidate Vivek Ramaswamy doubled down on the controversial campaign ad featuring the estranged mother of his opponent in the Ohio governor's race, Amy Acton, calling her a "liar." "If she feels that there's anything that's unfair or inaccurate about the criticisms leveled against her, she should be willing to defend herself on a debate stage," he said on Wednesday. Acton's campaign and her brother denounced the ad as a "despicable low." #ohio #election #midterm #governor