I like Digby's take on a potential Scooter Libby pardon by Bush (excerpt):

"....I don't know why Scooter is so damned special that everybody in Washington is having the vapors over the fact that he may have to do time. (I know if I were Jack Abramoff, I'd be a little bit miffed that nobody is lifting a finger after the tens of millions I'd funneled to all my good friends.)I mused yesterday that it was because the town elders are circling the wagons around one of their own, and I think that's part of it. "But it appears that this is actually something more and it's beginning to smell very ugly to me. The political and media establishment are making an explicit argument that high level Republicans really should be held to a lower standard than other Americans --- the exact opposite of the argument they made in the Clinton impeachment, where they insisted that a non-material lie about a private sexual matter in a dismissed case was so important that it required a duly elected and successful president be removed from office. Perhaps the problem is simply that the it's a capitol full of lawyers, who tailor their arguments for each individual case. Unfortunately, the only client seems to be the Republican party. "The fact is that the Libby case is simply not partisan. The Democrats were completely out of power and had nothing to do with it, so the cries of witchhunt and prosecutorial misconduct are absurd on their faces. Patrick Fitzgerald is the kind of prosecutor Republicans usually revere --- a by-the-book believer in the letter of the law. Yet they are making these specious arguments anyway and they are quite likely, in my estimation, to make them work, through sheer insider power...."