Maybe Modern Family will be to Ann Romney what Will and Grace was to Joe Biden? Modern Family co-creator Steve Levitan tweeted Wednesday that Ann Romney can guest-star on the show when gay marriage is legalized. Romney said Tuesday on Entertainment Tonight that the ABC comedy is her favorite show, prompting Levitan to tweet that he’s “thrilled” she watches the show. “We’ll offer her the role of officiant at Mitch & Cam’s wedding. As soon as it’s legal,” Levitan added.