As I have probably mentioned two or three thousand times before, the 2004 Washington State election for Governor had a significant number of questionable irregularities, and resulted in a margin that was statistically in the noise level. Lot's of folks (yours truly included) have suggested that the reasonable thing to do is to have a do-over. What the rest of the world would call a runoff. Now there is a site collecting names for a petition to the legislature to do just this. Otherwise, I think the only option is to try for a recall and start over.