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 ...

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 ...

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 ...

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 ...

Here we are, in the middle of a pandemic, staring out our living room windows like aquarium fish. The question on everybody’s minds: How bad will this really get? Followed quickly by: Seriously, how ...

Includes polls of special elections and runoffs. Excludes polls from pollsters that are banned by FiveThirtyEight, New Hampshire primary polls taken before the Iowa caucuses and other states’ primary ...

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

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 ...

When Theresa M. started attending a support group for breast cancer survivors, she didn’t expect political issues like abortion to be a part of the conversation. But since last summer, when her home ...

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 ...

Once statistics for an NBA game have been collected, their lifespan of usefulness is only just beginning. Players rely on them to hone skill development; teams leverage them for game-planning and ...

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 ...