With less than a week until the U.S. runs out of cash, economists and policymakers are using words like “cataclysmic event” and “calamity” to describe what will happen if Congress doesn’t raise the ...

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 ...

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

In the iconic skating film “Ice Castles,” Lexie — the main character who happens to be a top-notch figure skater — takes to the ice in a maroon jumpsuit and attempts a triple jump. It apparently was ...

Vote margin calculated based on the two-party vote, which uses just the Democratic and Republican vote totals. Together, the share of the statewide vote and the benchmark margins produce a 50-50 tie, ...

Four years ago, Lilliana Mason learned something she really, really hoped wasn’t true. A political scientist who studies Americans’ attitudes about politics and each other, she had long known that the ...

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 ...

The Affordable Care Act gave Amy McKay a chance to do something she never thought would be possible. It had nothing to do with her health care. The only pre-existing condition McKay was worried about ...

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 ...

When Samuel Henry was a kid growing up in D.C. in the late 1950s, he and his friends were devoted Washington Redskins fans — they had the jerseys and knew the lore. And as the lore had it, the ...

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

After a cacophonous two weeks of political news, a new sound has begun to emerge from Washington: the word “impeachment.” Following the news that President Trump may have tried to bully FBI director ...