I'll be quick.
Mr. Kennedy's letter to the mayors says, “The Committee will be scheduling the hearings shortly and we will be pleased to pass along these details”. I don't think that really means anything. I don't see how that could be a problem.
The other problem that I see, though, is that there's probably a breach of privilege from the Liberal side because I'm not sure if Mr. Jean should be on the receiving end of these e-mails. I think you have another problem there.
It is not up to me, but I'm not sure how Mr. Jean would have got his hands on an e-mail directed to Liberal members, les deputés, and Liberal assistants.