One possibility is that Bush might be impeached by November, or at least articles of impeachment might be in committee (House Judiciary Committee) by November. Or, articles of impeachment might be in the earlier stages (e.g., under ongoing investigation). They could simply be quashed or tabled in the next few months. But they are likely to be an election issue in some way, nonetheless. Depending on how the election goes, we might conceivably have Bush convicted in 2007. What do you think?
Then, we have ongoing Fitzgerald investigation, DeLay disaster, Frist foibles, Abrahamoff embarrassment, torture scandal, spy scandal, etc., etc.