You’re too tired to read your own links?
“Cheney, a former Wyoming congressman, lived in Dallas while he was chairman of Halliburton Co. until he changed his voting registration to Teton County, Wyo., on July 21 — four days before becoming Bush’s running mate.”
From the link supplied by you and EXACTLY how I remembered it.
Perhaps I misunderstood your motive. I assumed you were trying to undermine his character by implying he did something nefarious.