Numerically re vote totals, was Nader a spoiler this time or not?

Just curious. Can’t find data on what difference Nader votes going to Kerry might have made (if any).

As far as the results on CNN’s web site show, Nader didn’t win enough votes anywhere to change the results in any state this election.

Were there any other spoilers, like Badnarik, anywhere? Or any states where the combined third-party candidates were greater than the margin between the largest two? I doubt any of these would have actually turned out different in a runoff since the third parties take votes from both the major ones.