I've never been a huge fan of the NDP (New Democrat Party). I have Libertarian leanings and the NDP was always far too much in favour of what would be in serious danger of gross overspending. That said, Jack Layton was an incredibly inspiring man. With him at the head of the NDP and as the leader of the House Opposition, you felt reasonably good about Stephen Harper (current Canadian Prime Minister) having a much needed check and balance.
He certainly will be missed as a voice of reason, and inspiring speaker, and one of the few great politicians of any decade in Canadian history.