Republican against democrat is not really the issue here. I know all politicians are liars anyway, and this is always how they fall...when their lies come to light. It is just a matter a picking a lesser evil: a lie about once private life, or a lie about a fabricated threat, to invade an oil rich country that puts soldiers in harms way...
At any rate, it will not be difficult, for whoever comes afer GW, to take credit for a better (hopefully) situation than that :
Aurel