On August 31, the MPR News-Humphrey Institute released a poll for the Minnesota gubernatorial race. It shows: Republican Tom Emmer 34%; Democratic-Farmer-Labor Mark Dayton 34%, Independence Party Tom Horner 13%, undecided or other 19%. See this story.
Horner, the Independence Party nominee, is already higher in this poll than Jesse Ventura was in similar polls at this point in the 1998 election cycle. Ventura was at 10% in polls in mid-September 1998, but he won with 37%. At that time the name of the Independence Party of Minnesota was the Reform Party.
Minnesota has a very active group working for Instant-Runoff Voting.