It seems that Mark Udall does read conservative blogs. One pointed something out about his site and it magically changed that same day. Even if you have followed the link before, the entry has changed with an important update about Udall's change. Follow it again and read the comments.
johne (he signs his name that way) runs a lefty Colorado blog. You don't suppose that he was in on the quick change? Nah, the leftys running Colorado blogs have more integrity than that...don't they?