Paul Krugman has a fitting pre-Election Day column (note: TimesSelect has free access all this week):

President Bush isn’t on the ballot tomorrow. But this election is, nonetheless, all about him. The question is whether voters will pry his fingers loose from at least some of the levers of power, thereby limiting the damage he can inflict in his two remaining years in office.
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At this point, nobody should have any illusions about Mr. Bush’s character. To put it bluntly, he’s an insecure bully who believes that owning up to a mistake, any mistake, would undermine his manhood — and who therefore lives in a dream world in which all of his policies are succeeding and all of his officials are doing a heckuva job....In other words, he’s the sort of man who should never have been put in a position of authority, let alone been given the kind of unquestioned power, free from normal checks and balances, that he was granted after 9/11....The results have been predictably disastrous.
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The public, which rallied around Mr. Bush after 9/11 and was still prepared to give him the benefit of the doubt two years ago, seems to have figured most of this out. It’s too late to vote Mr. Bush out of office, but most Americans seem prepared to punish Mr. Bush’s party for his personal failings.
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The Constitution says that Congress and the White House are co-equal branches of government, but Mr. Bush and his people aren’t big on constitutional niceties. Even with a docile Republican majority controlling Congress, Mr. Bush has been in the habit of declaring that he has the right to disobey the law he has just signed, whether it’s a law prohibiting torture or a law requiring that he hire qualified people to run FEMA.

Just imagine, then, what he’ll do if faced with demands for information from, say, Congressional Democrats investigating war profiteering, which seems to have been rampant. Actually, we don’t have to imagine: a White House strategist has already told Time magazine that the administration plans a “cataclysmic fight to the death” if Democrats in Congress try to exercise their right to issue subpoenas — which is one heck of a metaphor, given Mr. Bush’s history of getting American service members trapped in cataclysmic fights where the deaths are anything but metaphors.

But here’s the thing: no matter how hard the Bush administration may try to ignore the constitutional division of power, Mr. Bush’s ability to make deadly mistakes has rested in part on G.O.P. control of Congress. That’s why many Americans, myself included, will breathe a lot easier if one-party rule ends tomorrow.