Luker, I don't believe this is a followup to the TPP.
The Harper invite came out Last Thursday Oct.1. .....event is today at 2:30 in Toronto.
The talks for the TPP stalled on Sunday and this landmark agreement was just announced today....
http://www.thestar.com/business/2015/10/05/landmark-tpp-deal-reached.html
THere is no way last Thursday that Harper would have known this landmark agreement would be signed today with all these countries....
Based on a last Thursday invite...my opinion is this announcement is about something else....I don't know what it is.
All I can say is since Rickford will be on the hot plate this Wed. in an all Candidates debate...in Kenora...it would be nice for Harper to throw him a bone.