The CCC is one of the most racist groups in America. Raising Kaine lays this out articulately and I agree that the CCC is an awful organization.
But the link to George Allen is questionable at best. He took a picture with the leaders of the group. That's bad, but what did he know about this group? The article RK is referencing says he did, but provides no evidence to that fact other than one person saying: "He knew exactly who and what the CCC was about".
The CCC is a horrible organization. They have said things like "Each of the three major races plays a distinct role in history. . . . The whites were the creators of civilization, the yellows its sustainers and copyists, the blacks its destroyers." and "The Jews' motto is 'never forget, and never forgive.' One can't agree with the way they've turned spite into welfare billions for themselves, but the 'never forget' part is very sound."
If it is proven that George Allen had ties to the CCC, this election is over. But I'm not yet convinced. This just gets added to a growing list of questions Allen needs to answer before Virginians will be willing to return him to the Senate.