Philip, the Clinton operation may not have to work too hard to dig up sordid details about Obama. This has been said before, but the man has not yet run in a serious race (sorry, Alan Keyes fans). He has not had a negative ad run against him. The media has not yet challenged him, or even done its own preliminary digging. (Junkets through Africa as part of the Obama fawning crew do not count. I am talking about something on the scale of sending reporters to Guatemala to knock on doors.) For a parallel politician, think of George Allen. Now I assume Obama is more ready for prime time than Allen was, but a tough lower-level race could flesh that out.