Even though Bush cannot run for re-election he would want to distance himself as far as possible from pardoning people associated with enron, even before it all broke he was deniying all knowledge of Kenny,despite the fact that he used to be a close associate of the Bush family.Much like the Bushes used to be best buddies with the Bin laden family when they were buying arms from america for the guerrila war against the russian invasion of afganistan.
As Woody Guthrie sang:-
"Yes, as through this world I've wandered I've seen lots of funny men; Some will rob you with a six-gun, And some with a fountain pen.

And as through your life you travel, Yes, as through your life you roam, You won't never see an outlaw Drive a family from their home."