The problem for me was that this fool claims that he had no idea of what the organization stood for.
Being a Republican legislator in Louisiana and claiming that you do not knwo what Dave Duke was all about is like living in Hollywood and not knowing that Mickey is a cartoon mouse.
Did you already know that David Duke had changed his organizations name?
This looks like a nasty fall into an unseen hole.
I have two things about it that make it look OK to me.
1) Talking to them does not imply agreement with them, didn't President Obama propose talking to Iran?
2) This is a very ordinary mistake, if it is a mistake , it was malice on the part of the organization if they changed their name in order to trick whoever might not have gotten the word.