Unimpeachable?

On the contrary, they are impeachable. In the case of George W. Bush, a strong case could have been made much earlier, and as more evidence comes to light, his term shortens and the Democrats are finding it ever harder to remember where they misplaced their balls. This new revelation Bush knew Saddam had no weapons of mass destruction only adds to the frustration.

In the case of Gloria Arroyo of the Philippines, many would support impeachment only if they were guaranteed a better result, in the short run. Pragmatism wins over principle, especially if one uses a high social discount rate (or holding the present more valuable than the future). The main argument for conservatism and economic policy continuity is the lack of credibility among the opposition, with its fair share of shady characters.

Now that the 'Hello Garci' wiretaps and election cheating investigations are being reincarnated, all the opposition can muster is a case for impeachment against the elections chief commissioner, on an entirely unrelated case. One led by an alleged human rights abuser with unexplained wealth, and the other, someone who had admitted to influence peddling for the sake of his wife's business.