Isn't the point to change the election rules? Ross Perot was a billionaire, self-financed, who got 8% of the national vote in 1996. The best result in recent memory. Did his campaign help 3rd parties in local elections in 1998? If the goal is to make 3rd parties a viable choice at the polls then it seems you have to make constitional changes at the state level. States make their own election rules. In MN there is no Initiative so the question I would ask is, how would you get a bi-partisan state legislature to refer a constitutional amendment to change election rules from winner take all to, say, runoff voting?