As Clinton and Obama spoke to Virginia Democrats on Saturday, the crowd's response -- and returns from Nebraska, Washington and Louisiana -- showed how the tide is turning.RICHMOND, Va. -- February is suddenly turning into the longest and the cruelest month for Hillary Clinton. She tried to put a brave and indomitable face on it Saturday night as she shared a stage (separated by 90 minutes on the program) with Barack Obama at the Virginia Democratic Party's Jefferson-Jackson dinner. "If I am your nominee," she declared on a night that raised new questions about that possibility, "you will never have...