As Sen. J.D. Vance (R-OH) stumped at a rally in Michigan on behalf of former President Donald Trump’s presidential campaign, he was sharply roasted by Vice President Kamala Harris’ campaign for a blunder in which he appeared to confuse which Biden administration cabinet member has which job. In response to a supporter in the crowd proclaiming, “Fire Granholm!” while he was discussing the cost of groceries, Vance replied, “That’s right, we’re going to fire the Agriculture Secretary because she’s not doing a very good job.” But the @kamalahq account was ready with a swift fact check, which they …