Les Sarkozettes.
I think most people would by now know I'm a big fan of Condoleezza Rice's style. Style, not her foreign policy. Personally, I think she's changed the face of women politicians (the Queen doesn't count, as she's just a figurehead and doesn't make any important decisions). She pretty much made away with the idea that women politicians are dowdy; who can forget Miss Rice in those boots?!
And since we're nearing the end of her term as Secretary of State, and she'd probably be back at Stanford, who'd be my next politico-fashionista(s)?
Right now I'm stalking the style of the Sarkozettes, French women ministers known not only for their intelligence, but their poise and style.