The principles behind our House, Senate and gubernatorial forecasts should be familiar to our longtime readers. They take lots of polls, perform various types of adjustments to them, and then blend ...

As we watch Michael Jordan vanquish each of his contemporaries in ESPN’s “The Last Dance” — which wraps up with its final two episodes on Sunday — it’s hard not to imagine the best of today’s game ...

Sometimes statistical analysis is tricky, and sometimes a finding just jumps off the page. Here’s one example of the latter.

With the 2018 midterm elections approaching, we’ve updated FiveThirtyEight’s pollster ratings for the first time since the 2016 presidential primaries. Based on how the media portrayed the polls after ...

Since Donald Trump effectively wrapped up the Republican nomination this month, I’ve seen a lot of critical self-assessments from empirically minded journalists — FiveThirtyEight included, twice over ...

The greatest drivers in the world are assembling in Monte Carlo this weekend for Formula One’s flagship race, the Monaco Grand Prix. So we thought it was the right time to dive into the history of ...

When the new Congress comes into session in January, there will be more Black Republicans serving together on Capitol Hill than at any point since 1877. The number? Five. 1 For years, Republicans have ...

“The Party Decides,” the 2008 book by the political scientists Marty Cohen, David Karol, Hans Noel and John Zaller, has probably been both the most-cited and the most-maligned book of this election ...

The Voting Rights Act of 1965 was supposed to settle the debate over race, redistricting and representation. Instead, it started new ones. Since the act prohibits states from reducing a minority group ...

We first published FiveThirtyEight’s club soccer predictions in January 2017 with six leagues. Since then, we’ve steadily expanded the number of leagues we forecast, added features to our interactive ...

All market ratings are adjusted for projected population growth through 2040. Popularity measured by Google Trends. Sources: Zach Miller, Google Trends, The New York Times, CollegeRaptor.com, ...

If you follow the headlines, your confidence in science may have taken a hit lately. Peer review? More like self-review. An investigation in November uncovered a scam in which researchers were ...