Even though many thought Sarah Palin's inclusion on the GOP ticket was a ploy to get disaffected Clintonistas to vote for McCain, the latest poll from CBS and the New York Times shows that Obama now has a 2 point edge over McCain when it comes to white female voters — up 21 points from last week. Obama is now far ahead of McCain among women in general, with 54 percent of female voters to McCain's 38. Overall, Obama leads McCain, 48 to 43 percent. MSNBC's ratings juggernaut Rachel Maddow is positively gleeful about these new poll numbers, and last night, she invited Slate's Melinda Henneberger on her show to discuss Obama's new lead among women.It should be noted that Maddow says she has tried to get about a dozen Republican leaders on her show to discuss the election from their point of view. Every single one has declined, though many McCain campaign cronies, like Nancy Pfotenhauer and Tucker Bounds, have been making appearances on Chris Matthews' show, Hardball. It's unclear if they are shunning Maddow because she is new or because she is so aggressively left-leaning. Anyway, the shine is officially off Sarah Palin, as the Nation notes, "the governor's overall favorable rating has fallen to just 40 percent in the CBS/New York Times survey — down four points from last week. Palin's unfavorable rating is up 8 points to 30 percent. But the shift is even more dramatic among women, with whom Palin's star has fallen 11 points in one week." Poll: Obama Retakes Lead Over McCain [CBS News] White Women Shift, Giving Obama the Lead [The Nation]