While frequent co-host Cynematic preps for her appearance at Netroots Nation, Karoli steps in with Donna Schwartz Mills to shepherd this week's lively conversation about politics (serious again, now that the media has squeezed all it can out of Anthony Weiner -- for the time being).    Julie Pippert was also on hand for a spirited discussion of Michele Bachmann, Mitt Romney, Proposition 8, Tea Party Camp and what the young folks are into these days.