FiveThirtyEight uses statistical analysis - hard numbers - to tell compelling stories about elections, politics and American society.

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 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 ...

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 ...

Odds may not sum to 100 percent due to rounding and third-party candidates. CORRECTION (Aug. 17, 2018, 5:45 p.m.): The first name of Rep. Mark Pocan of Wisconsin was misspelled in an earlier version ...

Editor’s note: This is the first in a series of six pieces that show how professional sports owners in America contribute to political campaigns, why they spend millions in the space and what that ...

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 ...

Live election results and coverage of the 2020 presidential election between Donald Trump and Joe Biden, and the race for the U.S. Senate and House of Representatives.

Votes are still being counted slowly in New Jersey, but we have what qualifies as a major update out of Hudson County, where 1,865 additional votes have been counted. We’re told these were mail votes, ...

Kenny Michelena is, by just about any measure, a tough guy. He was born and raised on a ranch in rural northwestern Wyoming and remembers that after class in elementary school, the bus driver would ...

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, ...

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 ...