From Kos at dailykos:

Nitpicker:

So, while it's good to see Congress finally chipping away at the crust surrounding the Bushies warm, gooey center of corruption, it's important to make clear that this isn't simply a rogue, incompetent administration. This is a rogue, incompetent administration which is, nevertheless, following the exact recipes Republicans have written over the last thirty years. Americans need to understand that, in one sense, Bush hasn't failed. He implemented core Republican principles and they failed. And they always will.

Remember, the problem isn't Bush. It's the entire conservative movement. And focusing on Bush actually helps other Republicans make the case that the problem was a single man rather than an ideology.

Although I tend to agree that it's the movement that is the problem, I wouldn't go so far to say we should impeach the ideology. Ideology is tenacious. What has happened is that there is small faction (neo-cons) who have usurped the conservative movement, it's that faction that's the problem, not necessarily the ideas behind them. But like the quote says, Bush has done fantastically, he's Ronald Regan the 2nd.

As for his main point. Spot on. Don't let Republicans pin this problem on Bush.