Republican presidential candidate Donald Trump called the controversy swirling around his rival Ben Carson "very strange" Sunday, questioning stories Carson has told that have since been scrutinized. Trump has questioned Carson several times about a childhood story in his autobiography "Gifted Hands" in which Carson described once trying to stab a friend or relative. He also questioned a story Carson has told about hitting his mother with a hammer. “It's a strange situation when you talk about hitting your mother on the head with the hammer," Trump said on ABC's "This Week." "It's a weird deal going on and I...