has a LOT of tossup states.
http://www.realclearpolitics.com/epolls/2016/president/2016_elections_electoral_college_map.html
Not sure what their cutoff is... perhaps it's a tossup if it's within their margin of error, or perhaps within 5%.
They list Minnesota as a tossup, though, whereas Electoral Vote.com lists Hillary as having a 13% lead in Minnesota :
http://www.electoral-vote.com/