Either the family name for those who live near abush or a thicket of bushes, or the family name for those living at or near a bush (in the archaic sense of wine merchant or tavern).
This means Gore will have to stop dancing away from the question as if the pardon decision were somehow shared with the pardonee. It's time he chose the hard right over the easy wrong answer. (ForBush, it would be an opportunity to demonstrate nonpartisan compassion on a grand scale.)