What we still don’t know or have evidence for is whether the parents thought the same way their daughter chose that path.
We do know going back at least 15 years, we know more about how the Cheneys believed in “gay marriage” than just about any other politicians.
Wanting to campaign on the homosexual agenda to the republican base in 2000, is as strong as it gets, perhaps if you are just totally obsessed with how Dick Cheney felt about the concept of “gay marriage” in the 1970s, or 1980s, you could try doing what sounds to me, like impossible research.