Largest delegate percentage reflects the largest number of delegate votes won by the former president on a ballot for the presidential nomination, out of the total number of delegate votes at the ...

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 ...

But trying to distinguish the effects of only one type of restriction, like voter ID requirements, is challenging because a new election law rarely changes only one voting provision. “The actual ...

Apportionment, or the process of determining the number of seats each state has in the U.S. House of Representatives, happens like clockwork at this point. Every 10 years, the Census Bureau counts how ...

Get the data on GitHub GitHub data at data/nba-raptor ...

America’s cities are some of its most solidly Democratic areas — but that doesn’t mean they are solidly liberal. Over the past two years, the mayoral elections in our two biggest cities have boiled ...

Around 100 million Americans will tune in this Sunday to watch Super Bowl LIV. The big game hasn’t just become the nation’s most popular sporting event; it’s also become America’s most important and ...

From that vantage point, the story of how polls did in 2020 is complicated — more complicated in some ways than in 2016, which was also complicated. And since the election was called for Joe Biden on ...

Longtime readers of FiveThirtyEight are probably familiar with our pollster ratings: letter grades that we assign to pollsters based on their historical accuracy and transparency. Since 2008, we have ...

Venus Williams was the first of the Williams sisters to make a splash in professional tennis. But Richard Williams, their father, was always convinced that Serena — 15 months younger than Venus, and ...

The U.S. House of Representatives isn’t the only chamber whose district lines are being redrawn to reflect the 2020 census. State-legislative chambers are being redistricted too — and as we’ve written ...

It used to be, if you wanted to see a Poweshiek skipperling butterfly, the thing to do was go out on the prairie and stare into the middle distance, like you were trying to see a sailboat buried in a ...