A Primer on Polling Error in 2016 — An Historical and Comparative Perspective

Polling error in the 2016 US election may not have been as bad as you think. Where does it stand with history? With other democracies?

(INTERACTIVE) Presidential Popularity - Where Does Trump Fit in?

Is Donald Trump really the most unpopular President in modern American history? Yes.

(INTERACTIVE) Mapping America's Democratic Shift

How has America changed since John Quincy Adams? Mapping the electorate from 1828 to 2016.

The Least Predictable Counties in the United States

Is Election Forecasting Harder in Different Parts of the Country?

There Is No (Good) Data To Support Claims of Vote Rigging in Wisconsin

Some computer scientists would have you believe the election was rigged in Wisconsin. That's not the case, and any claims of such are unsubstantiated.