My understanding is Cheney was interviewed by Rush for his program, and was defending the choice of whazzername. Rush was challenging the choice, saying it wasn't doctrinaire enough for the extreme loonie right, which definitely has a litmus test for any judicial candidates, but especially SC candidates. So Cheney went on Rush's show to do damage control. Don't forget, Cheney is the extreme loonie's hatchet man, Bush their beloved savior.