It’s the type of tricky question designed to trip up a presidential candidate. But the US senator Elizabeth Warren’s deadpan response when quizzed about same-sex marriage during a TV debate drew applause and widespread admiration. During the CNN forum on LGBT issues on Thursday, Morgan Cox, the chair of the Human Rights Campaign board of directors, asked Warren how she would react to a supporter who said: “I’m old-fashioned and my faith teaches me that marriage is between one man and one woman.” Warren replied: “Well, I’m going to assume it’s a guy who said that. And I’m going to say, then just marry one woman. I’m cool with that. Assuming you can find one.”