Despite Minnesota being the only state Hillary won from Minnesota, Wisconsin, Michigan, Pennsylvania, and Florida, it is actually the state of those from which she received the lowest portion of the vote:
1. Pennsylvania - 47.46%
2. Florida - 47.41%
3. Michigan - 47.03%
4. Wisconsin - 46.45%
5. Minnesota - 46.44%
Perhaps this suggests the Democrat's are on thin ice there if some of the third parties come home in 2020?
I wouldn't put too much stock into it. Keep in mind Minnesota traditionally has more of an Independent streak than any of those. In fact you need to go back to 1984 with Mondale to see a year where any of those states had a higher third party % than Minnesota (and that was Wisconsin by 0.05%)