1) Tom Holbrook, indispensable as always, on the (limited) impact of debates over time.
1a) John Sides and Jon Bernstein also throw cold water on the idea of debates as game changing events in the campaign.
2) Emma Roller at NPR has another take.
[Eh, I'll side with the political scientist on this one.]
3) Alex Speigel had a nice story on question dodging in debates on Morning Edition this morning.
4) If you have the time before the debate tonight, the PBS documentary, Debating Our Destiny, is always a worthwhile view.
NOTE: FHQ will try to embed a Twitter conversation in a post for the debate this evening. I'll be most active over there, but will try to pull double duty and respond to any comments that may come up over here in response. If you are on Twitter either reply directly to one of my tweets and/or use the #fhqdebate hashtag to insure that your comment/response is included in the feed.