Q: So if a state were voting on gay marriage, you would suggest to that state not to approve it? A: The state can do what they want to do. Don't try to trap me in this state's [rights] issue like you're trying to get me into. … In my state of Texas, if we tried to have gay marriage, I would campaign against it. —Candidate George W. Bush, in a presidential debate moderated by Larry King in Columbia, S.C., Feb. 15, 2000 Peter Singer cites this exchange in his new book, The President of Good and Evil: The Ethics...