Former Vice President Dick Cheney and political commentator Liz Cheney said Wednesday that Kentucky clerk Kim Davis has an obligation to serve gay couples.

Davis is facing contempt charges for defying a court ruling ordering her to issue marriage licenses to all qualified couples. On Tuesday, she turned away at least four gay couples despite having exhausted all her legal options.

(Related: KY clerk faces contempt hearing for refusing to issue marriage licenses to gay couples.)

During an appearance with his daughter on the conservative outlet Newsmax, Dick Cheney said that it was “clear” to him that Davis had no choice but to comply with the order.

“It's the law of the land and as a general proposition, it seems to me you've got to go forward with it,” he said.

Liz Cheney disagreed with host Steve Malzberg's suggestion that forcing Davis to issue marriage licenses to gay couples was a “step” toward forcing churches and synagogues to wed same-sex couples.

“As my dad said, it is the law of the land,” she said. “The court has ruled. And she's not an employee of a church or synagogue. She's a government employee. So, she has an obligation to uphold the law.” (The video is embedded on this page. Visit our video library for more videos.)

During her failed Senate run last year, the younger Cheney feuded with her sister, Mary Cheney, who is gay and married, after she came out against marriage equality.

(Related: Mary Cheney “not supporting Liz Cheney's candidacy.”)