For some reason it's not showing my comment so I'll post it again:
Just a note, they also included a generic "other" option which got 7% in Iowa, 4% in Michigan, and 3% in Ohio in addition to 5%, 7%, and 8% Jill Stein and Gary Johnson got respectively. Because of this a total of 12%, 11%, and 11% were absorbed by "others". I just can't see that happening.
I'm guessing those were for Johnson and Stein. I looked into the methodology and they did not include Johnson and Stein. If someone wanted to choose them, they had to choose "Someone else" and type in their name. Garbage poll.