She was reporting something about the Repubs.
While watching the episode this came from (last fall), I had to re-run these few seconds several times, just to see her do this great expression again. Made me smile and laugh and smile. A lot. Then I kept remembering it for several days, till finally I had to go back and find it and grab a screenshot for keepsies. And now for sharesies, now that I have finally fingered out how to do it. (My pic file's creation date & time is 9/29/11 2:07 AM. The ep was a few days earlier.)
I still had the video and could screen-grab it because, not having a TV machine, I watch Rachel on my computer via podcast thru iTunes. I wish MSNBC would put out some of their other shows that way. Chris Hayes! And Whatsername with the cornrows.... it'll come to me in a minute.... dum de dum .... Melissa! Melissa Harris-Perry. Who used to be Melissa Harris-Lacewell. (Keith Olberman was a podcast too, while he existed on MSNBC.)
Hey MSNBC! Why only Rachel is a podcast? Enquiring lefty-non-TV-owners want to know! And want to watch the other progressive talking heads! Please?!
Slightly crooked orange curlicue thingy concludes this post.