“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 ...

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

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 ...

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 ...

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 ...

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 ...

Michael Thomas of the New Orleans Saints can create separation from his defenders all over the field. To try to capture the results of this game of cat and mouse between receiver and defender, we used ...

Live coverage and results of the 2016 Election, including the presidential race between Hillary Clinton and Donald Trump and the race for control of the Senate and the House of Representatives.

In the first few years after former President Donald Trump assumed office, he essentially became a one-man litmus test for the Republican Party. Conservatives’ bona fides hinged less on their voting ...

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 ...

The 2020 presidential contest is starting to pick up steam, but we’re still a long way from any votes being cast. To see if we can learn anything at this stage of the election cycle, we’ve been ...

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 ...