Barack and Michelle Obama have put on a rare show of unity by jetting off on a lavish getaway together - after months of swirling speculation about their marriage. The couple seemed to put the ongoing divorce rumors to rest as they soaked up the sun in Portofino, Italy, aboard their pal Steven Spielberg's $250 million superyacht over the weekend. The pair notably arrived separate from one another, however, with photographers catching a solo Michelle, 61, getting onto the luxurious, 357-foot boat via a tender ahead of her husband. She donned some baggy jeans, a matching denim button-down top, with...