The Obama campaign responds to "Original Mavericks":
On the lobbyist question, it should be noted that both campaigns have strict policies regarding active lobbying work. (And also that lobbyists on the whole aren't really the sinister bogeymen these guys sometimes make them out to be.) And don't forget that the Obama campaign has its own lobbyist ties, so it's a little disingenuous to go after McCain on that front. But the familiar 90% statistic and the bite-back on the McCain camp's Bridge to Nowhere claim are both factually legit.
Perhaps the most noteworthy aspect of this ad is the fact that Sarah Palin is in it at all. It seems as if the Obama folks must be taking the GOP base's enthusiasm for her pretty seriously. That can be read in one of two ways: one is that it's evidence of a lesson learned from the Kerry campaign's failure in 2004 — that you can't let the opposition's distortions slide because people might just believe them. The other is that it reveals the Obama camp is really worried about Palin, maybe even more so after McCain's post-convention polling bounce.
An open question: if the news cycle continues to be a referendum on the GOP VP nominee, which campaign does it help?