Christian conservative Bryan Fischer has described Mary Cheney as an “intolerant lesbian bigot.”

Mary and Liz Cheney, the daughters of former vice president Dick Cheney, became embroiled in a public feud over gay marriage after Liz Cheney, who is challenging Wisconsin Senator Mike Enzi in the Republican primary, reiterated her opposition to gay nuptials during an appearance on Fox News Sunday.

“Listen, I love Mary very much. I love her family very much. This is just an issue on which we disagree,” she said.

Mary Cheney responded in a Facebook post that she was “wrong” and “on the wrong side of history.” Mary's wife, Heather Poe, wrote that she was offended.

(Related: Mary Cheney, wife offended that Liz Cheney doesn't support their marriage.)

Fischer, who previously declared that Liz Cheney cannot be a patriot because she supports some gay rights, rushed to Liz Cheney's defense.

(Related: Liz Cheney cannot be “a patriot” because she's pro-gay, Bryan Fischer says.)

“It's very clear here that Liz Cheney is not the intolerant bigot,” Fischer told his Focal Point radio listeners. “It is Liz Cheney's sister who is, in fact, the intolerant bigot.” (The video is embedded on this page. Visit our video library for more videos.)