Interesting things I noticed:
1. The entire Cleveland, Las Vegas, Providence, Hartford, Buffalo and Rochester metropolitan areas moved to the right. I imagine the entire Milwaukee metropolitan area did as well, though data from Wisconsin has not been completed on the map yet.
2. In the Philadelphia, Detroit, Baltimore, St. Louis, Kansas City and Virginia Beach/Norfolk metropolitan areas, the urban core moved to the right, while many of the suburban counties moved to the left.
3. The Dallas, Houston, Atlanta and Salt Lake City metropolitan areas all moved significantly to the left.
Actually Milwaukee, Ozaukee, and Waukesha counties all swung towards the Democrats. Trump did not get the margins they usually get in the Milwaukee suburbs. This is the main reason why the state was so close, even though the county map looks like Walker's 2014 win.
Noted. That means Milwaukee is part of the second group I mentioned, with Philadelphia, Detroit, etc.
Milwaukee County as a whole moved slightly to the left, but I definitely would think that's because many wealthy suburbs like Wauwatosa, Whitefish Bay, and co. swung hard toward Clinton, not because of any change in the city of Milwaukee.