UPDATE. Did Facebook help to tip the state to Trump?

Russian-linked Facebook ads specifically targeted Wisconsin, Michigan.  (Milwaukee Journal Sentinel, 10/3/2017)

It has been unclear until now exactly which regions of the country were targeted by the ads, and while one source said that many appeared in areas of the country that were not heavily contested in the elections, some clearly were geared at swaying public opinion in the most heavily contested battlegrounds, the network reported

Counties where Trump won 60% or more of the vote are highlighted

Original 8/21/2017 post, "Plenty of voter remorse in Wisconsin, Michigan, and Pennsylvania", starts here.

Return to the Rust Belt: Dismal Job Approval Ratings for Trump in Michigan, Pennsylvania, & Wisconsin.  (Marist Poll, 8/20/2017)

“For residents of these three critical electoral states, the reaction to the first round of the Trump presidency is decidedly negative,” says Dr. Lee M. Miringoff, Director of The Marist College Institute for Public Opinion. “Residents are clearly dissatisfied in how candidate Trump transitioned into President Trump.” 

Many Republicans and Tea Party supporters are in the president’s camp. Still, notable proportions of Tea Party supporters in Michigan, 24%, and Pennsylvania, 24%, have doubts about how the president is executing his job.

A few numbers to consider:

• 302 - Trump's Electoral College tally
• 232 - Clinton's Electoral College tally
• 270 - Electoral votes needed to win Presidency
•   46 - Electoral vote total of WI, MI, PA
• 256 - Trump's Electoral College tally had Clinton prevailed in these 3 states 
• 278 - Clinton's Electoral College tally had Clinton prevailed in these 3 states.

Clinton lost WI, MI, and PA by a total of 72,744 of the votes -- or 0.55% of the total votes cast in these 3 states.

Also of note.  Overall, Clinton won the popular vote by 2,868,691 -- 48.5% for her and 46.4% for Trump.

Thanks to the likes of 96.1% white Taylor County, the Wisconsin county where Trump received the highest percentage of votes, even outdoing 93.1% white Washington County (67.9).