If Trump makes noticeable improvements in American jobs he will tilt MI, WI, OH, PA to the GOP for at least 2020 and 2024....until some milquetoast republican screws it up. His margins will grow in those states. I suspect MN will tighten as well.
Nancy pants Linda Graham and his buddy John McStain practically already want to impeach Trump and that's just for winning the election and saying mean things about illegals.