FiveThirtyEight

We Used Broadband Data We Shouldn’t Have — Here’s What Went Wrong

Over the summer, FiveThirtyEight published two stories on broadband internet access in the US that were based on a data set made public by academic researchers who had acquired data from Catalist, a well-known political data firm. After further reporting, we can no longer vouch for the academics’ data set. The preponderance of evidence we’ve collected has led us to conclude that it is fundamentally flawed. That’s because: