Wishing will not make it so
Bush will be around for another 18 months, get used to it. You have lived with it for over 6 years surely you can make it anothet 18 months.
There will be no impeachment based on anything currently on the table.
Even if his performance justified impeachment, it would not be the best thing for the country. Take your satisfaction from the fact that he will have no legacy to speak of and his dismal popularity ratings have severely damaged the Republicans in 08.
