Every family has its black sheep, the opinionated outlier who is out of sync with the values of the others. Once upon a time that person might have been the gay or lesbian child. Times have changed, though, and today the black sheep can also be the family member who insists her lesbian sibling should be deprived of rights to which she is legally entitled.

With her self-serving public remarks against gay marriage on Fox News Sunday, Liz Cheney has now made herself into the black sheep of the Cheney family. Not even Cheney pere takes so extreme a position against the emotional well-being of a member of his hearth.

Liz Cheney is running as a challenger in the Republican primary in Wyoming against incumbent Sen. Mike Enzi. She's so far down in the polls a loss seems foreordained. But Republican voters in the state of Wyoming are still iffy on the question of same-sex marriage—the majority of them oppose it—and Liz Cheney has since the summer been saying she's in sync with that, too. "I love Mary very much, I love her family very much," Liz Cheney said Sunday on Fox News, explaining her position. "This is just an issue on which we disagree."