But with a 2-party system, how do you do that? As a Canadian, I've seen disaffected factions of our major parties splinter off and create viable alternatives. O

But with a 2-party system, how do you do that? As a Canadian, I've seen disaffected factions of our major parties splinter off and create viable alternatives. Often they don't get elected, but they attract enough votes to make the mainstream left/right party take notice and move in their direction.