I calculated these estimates awhile ago based on the White vote by County project of mine (the granularity is only at the county level, so there is some degree of error here):
Based on these stats, to some degree those who have eastern European ancestry are more likely to be liberal which is quite opposite to the ones living in the Eastern European countries now. I kind of thought the Scandinavians and Germans were likely to be less conservative seeing how many rural counties in Wisconsin and Minnesota vote democratic in the recent elections.
The areas of Wisconsin that are super German overwhelmingly voted Trump. Obama lost them by strong margins in 2012 as well, but Obama almost won German Catholics in 2008. Obama won strong Norwegian areas in Wisconsin by strong margins in 2008 and 2012, before they very narrowly went for Trump in 2016. Norwegians swung back pretty well to both Evers and Baldwin in 2018. Poles in Wisconsin used to be very Democratic, probably the most Democratic white ethnicity in the state. That changed under Obama. Obama won Poles by about 24 points in 2008, Baldwin lost them by about 3 points in 2018.
Poll
