(JTA) — A candidate for the U.S. Senate in Ohio ran an ad calling out his opponent Josh Mandel’s Jewishness and defended the spot at a candidate forum Thursday night. Mark Pukita, an entrepreneur who is one of several candidates vying for the Republican nomination in a crowded primary to replace retiring Sen. Rob Portman, released the radio ad in October. It highlights Mandel’s courting of evangelical voters by touting “Christian values.”