he's basically testing the waters to see where his supporters lie so he can make a federal run. he was ndp president for 2 terms, and originally ran in trudeau's riding in montreal when he was 18 years old. i think he knows he doesn't stand much of a chance, so he just wants to test things out. it's a pretty good strategy.
he's done a lot of great development work in africa as well, and comes from an interesting family.