http://www.whitehouse.gov/news/releases/2007/06/20070615-10.html
President Bush to Attend North American Leaders' Summit in Canada
"President Bush will travel to Montebello, Quebec, Canada to meet with Prime Minister Stephen Harper of Canada and President Felipe Calderon of Mexico at the North American Leaders' Summit on August 20-21, 2007. The leaders will review progress and continued cooperation under the Security and Prosperity Partnership, as well as discuss hemispheric and global issues."
Nobody denies the SPP exists.
The debate is on it’s purpose and expanse.