If you'd asked us two months ago if we were excited about two Saturday Night Lives in one week, we'd've probably have said no. But that was before Tina Fey's impression of an "increasingly adorable" Sarah Palin became the defining comment on this year's election. So now we'll be watching tonight's Saturday Night Live: Weekend Update Thursdays special, hoping for an extra dose of Feylin. Between Fey's Palin and Oliver Stone's hopefully hilarious W. “featuring Josh Brolin as President Bush,” we might be entering a new golden age of onscreen political caricature. From Fey to Dana Carvey to Peter Sellers, we've collected the funniest, sharpest, and most cutting political impressions of all time, after the jump.