The questions over the 60 Minutes investigation on President Bush’s National Guard records seemed to stem from the blogosphere before escalating into a mainstream story. But as one of tomorrow’s guests, Bob Steele, argues, bloggers’ treatment tends to be ideologically driven on either side of the issue. The conservative sites, Powerline and Little Green Footballs were one of the first to question the CBS documents’ authenticity. And Much of the questioning of the questioning has come from the liberal DailyKos and TalkingPointsMemo. Though it helps to know their motivation, does it matter if these questions come from partisan sources as long as there’s truth to them? Hear what Poynter's Bob Steele says tomorrow.