Mary Cheney is surely one of the most talked-about second daughters in US history. As a lesbian whose father, Vice-President Dick Cheney, is one of the most prominent members of the political party that has fought the advance of gay rights, she is the frequent subject of armchair psycho-analysis: Why is she a Republican? Is she trying to advance gay rights from the inside? What must she be thinking?
That speculation has intensified since Ms Cheney announced this month that she is pregnant. The news comes at a significant time, when the issue of gay marriage has emerged as one of the key points for social conservatives in America.
Andrew Sullivan, a prominent gay conservative commentator, said the pregnancy could be a 'pivotal moment' in the eventual acceptance of gay families.
But the more common reaction among conservatives was outrage.
'By this selfish action, Cheney is not merely disrupting society, she is being cruel to her child,' said Paul Cameron, of the Family Research Institute.
'Mary's pregnancy is an in-your-face action countering the Bush Administration's pro-family, pro-marriage and pro-life policies. She continues to repudiate the work to which her father has devoted his life,' said Janice Shaw Crouse, of the Concerned Women of America.