The National Security Network offers this "prebuttal" to Petraeus's testimony:

While the General is giving his opinion to Congress, the Iraqis themselves have a much more dire outlook:

ABC News reports also that a new poll commissioned by ABC and BBC shows that 65-70% of Iraqis say that security conditions are worse since the surge and 45% want an immediate American withdrawal. Most strikingly, in Baghdad and even in Anbar -- touted as the area of greatest US success -- attitudes towards the surge were 100% negative.

We'll be getting up video as soon as we can, but Ilan Goldenberg will be live blogging/fact-checking at Democracy Arsenal

If you see anything clipworthy during the hearing, please let us know.

UPDATE: Please use this thread as an open thread on the hearing.