Saturday Night Live has been on a much publicized role with its coverage of this fall’s campaign season, and that’s mostly thanks to Tina Fey’s instant classic take on Sarah Palin. Last night’s episode proved no exception with a razor-sharp opening skit that skewered not only Palin, but Joe Biden and even Gwen Ifill (played gamely by Queen Latifah). And as an added bonus, the writers brought their A-Game the entire episode, with almost every skit being very funny (there were a few duds, but even those brought some laughs). Hopefully now we can finally extinguish that regrettable Michael Phelps installment…