It's received a lot of attention, and rightly so. From Republican outrage* "Oh, look, the Democratic Party reduces women to their sexual status too!" to this well-written article on hipster sexism.
I don't condemn the ad as objectification of women. Lena Dunham is an extremely self-aware woman who knows what she's doing.
But I don't think the ad goes far enough in comparing voting to sex. I think I can do better.