Americans Still Oppose Gay Marriage But only half favor a constitutional amendment to bar it PRINCETON, NJ -- Americans are closely divided in their reactions to the sort of constitutional amendment banning gay marriage that produced considerable fireworks in the Senate Judiciary Committee on Thursday. Asked whether the Constitution should be amended to define marriage as only between a man and woman -- a move that would preclude states from sanctioning same-sex marriages -- 50% of Americans say they would favor such an amendment, while 47% are opposed. Sens. Russ Feingold (D-Wis.) and Arlen Specter (R-Pa.) had a heated exchange...