Presidential candidate Ted Cruz loved to argue as a Harvard student and boasted he'd get the best grades in his class, only to lose out to two other classmates. In a series of exclusive interviews with Metro, several of his former classmates painted a complex portrait of the Tea Party's most beloved presidential candidate. Laurence Tribe, a longtime Harvard law professor, said Cruz took his constitutional law class, challenged his teacher in interesting and "invariably right-leaning" ways at every turn. Tribe said Cruz bragged to many of his classmates that he would receive the highest grade in the class, which...