And in 2008, John McCain did better than Trump in Waukesha and Ozaukee counties.
Shifting gears here, let's take a look at the Wisconsin counties where Democrats experienced the biggest percentage loss of votes, comparing the 2012 and 2016 Presidential elections.
Source: Milwaukee Journal Sentinel
Which appears to be confirmed by this bar graph.
Source: U.S. Census Bureau QuickFacts
Mapping the most considerable Democratic vote loss.