Reducing Muslim immigration/refugees was important to some of my Michigan relatives. They have seen Dearbornistan - a dark vision of the future under Hillary.
I have been telling everyone how bad Dearborn has become, and they really don’t believe me. I can only imagine it has gotten worse since we left in 2008.
Trump came very close to winning Minnesota, a REALLY deep blue state.
Same experience with the Somalis is likely why.