Some folks say impeachment isn't worth it, because if the House impeaches Mr. Bush and Mr. Cheney and then the Senate tries and convicts them and removes them from office, we might get stuck with someone even worse.
The trouble with that theory is that the Constitution has already limited the pool of successors. If Messrs. Bush and Cheney were removed from office today, we would be "stuck" with Senator Ted Stevens of Alaska, who, as President Pro Tempore of the Senate, is next in line for the Presidency. If the Democrats take control of the Senate in 2006, the President Pro Tempore would be Robert Byrd of West Virginia. I think this would be a good situation regardless of your affinity for either man, since each of them are approximately 388 years old and almost certainly wouldn't run for re-election in 2008. I can't imagine either Senator being much more than a caretaker for the remainder of the 2004-2008 term, either -- given the circumstances of a Bush/Cheney removal from office, you'd think they would approach their new assignment with some trepidation.
UPDATE. As I noted in a later post, this entire analysis is horsedoodle -- the Speaker of the House, not the President Pro Tempore, is next in line after the President and Vice-President. I regret the error, though not the wish for either Messrs. Byrd or Stevens as President. Please make a note of it.