Liz and Mary Cheney Liz and Mary Cheney (AP / File)

When Liz Cheney was asked about same-sex marriage on MSNBC four years ago, she said she would oppose a constitutional amendment to ban same-sex marriage in every state, as her dad's boss, President George W. Bush,  had suggested in 2004.

"My family's been very clear about this. We think freedom means freedom for everybody," she said, but she added that she thought it was an issue that citizens in each state should be able to decide for themselves. Pressed, she said she supported benefits for gay spouses of State Department employees. "It's wrong to discriminate in those relationships based on somebody's sexual preference," she said.

But yesterday on Fox News Sunday, when host Chris Wallace asked about what she said in 2009 on MSNBC, Liz Cheney said that she has always been opposed to gay marriage despite her previous statement that she would not support a federal ban. “I do believe it’s an issue that’s got to be left up to the states," she said Sunday. "I do believe in the traditional definition of marriage."

On Monday, her father, former Vice President Dick Cheney, also said her position hasn't changed.  "Liz has always believed in the traditional definition of marriage," he said in a statement.