Wisconsin came down to a big turnout from new voters (at least newly registered) in a few blue counties (mostly Dane, the home of @UWMadison).

Trump lost by 30k. Dane county alone was the margin of victory.

There are a few truly remarkable data points like Waukesha which, despite no population growth, had a an almost 10% increase in voter. Trump surged, but so did Democratic voters. Without this, the election could have gone the other way.

Big tech played a role awarding several million dollars to help register new voters in these same areas (Madison, Milwauke), help with mail in votes and help fill out forms.

https://www.techandciviclife.org/wisconsin-safe-voting-plan/

Dollar for dollar, this is probably the best money spent on an election anywhere in the entire country.

Big tech makes donations but they are also able to use it on the backend to help sell ad revenue to candidates and PACs.

https://techandciviclife.org/key-funders-and-partners/