According to this source, the recent indignation of Dick and Lynne Cheney over Kerry's comments about their daughter's sexuality was orchestrated by Mary herself:
Sources close to the Bush-Cheney campaign tell 365Gay.com that the idea came up in a telephone call between Mary and her parents immediately after the presidential debate Wednesday night.
The younger Cheney, who serves as a backroom advisor to her father, suggested that she would continue to be a "issue" for Democrats unless something was done to stop it immediately.
If this is true, it worked. The possible wedge issue Kerry introduced to perhaps alienate some of Bush's fundie base has now become the major talking point about the debates.