It's ridiculous for her to say that because Cheney has already shown that he's not ashamed of Mary's sexuality ~ he brought it up in several speeches before! The difference is that Cheney doesn't mention it for political gain (obviously!).
Isn't she something? First Mrs. Edwards had to run up to Cheney after the VP debate to correct him about the time that her husband sat next to him at the prayer breakfast, and now with this. She & Mrs. Ketchup-Money are two peas-in-a-pod: petty, catty, unhappy women.