Below is the scatter diagram, with the X axis the 2000 Nader percentage by county in Minnesota, and the Y axis is the percentage swing towards Kerry as compared to Gore's percentage. As one can see there is a correlation and a trend line in favor of the hypothesis that the higher the Nader percentage, the higher the swing, but it is very loose, and the R squared factor is only .07, which is tiny. So a LOT more was at play in the swing than the size of the Nader vote.
I am doing this because some of the usual suspects were marginalizing me by suggesting that I was all wet in the notion that Oregon might be close this year, because the only reason it was close in 2000 was Nader. Having gotten beyond themselves, it was time to take off the gloves.