MINNEAPOLIS (AP) -- GOP presidential candidate Newt Gingrich and his wife Callista were hit with glittery confetti by a protester Tuesday during the couple's appearance at a book-signing. The man approached the Gingriches during the signing at a downtown Minneapolis hotel, dumped a cracker box full of colorful confetti on the pair and said, "Feel the rainbow, Newt! Stop the hate! Stop anti-gay politics!" Two Associated Press reporters witnessed the event. The man was quickly pushed out of the room by an event organizer as the Gingriches brushed confetti out of their hair and laps. Newt Gingrich smiled as he...