KitchenAid is doing some serious damage control following an errant tweet sent out from the company's Twitter account during Wednesday night's presidential debate.The tweet, according to Mashable, referenced Obama's deceased grandmother, Madelyn Dunham, who died in November 2008:@KitchenAidUSA: "Obamas gma even knew it was going 2 b bad! ‘She died 3 days b4 he became president"."???