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 ...

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 ...

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 ...

On Friday at noon, a Category 5 political cyclone that few journalists saw coming will deposit Donald Trump atop the Capitol Building, where he’ll be sworn in as the 45th president of the United ...

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 ...

The United States is changing rapidly. The oldest baby boomers are into their retirement years, and the median age of the U.S. population is climbing. At the same time, each generation is more ...

If you follow the headlines, your confidence in science may have taken a hit lately. Peer review? More like self-review. An investigation in November uncovered a scam in which researchers were ...

This is the 11th and final article in a series that reviews news coverage of the 2016 general election, explores how Donald Trump won and why his chances were underrated by most of the American media.

In January, Philip McHarris was driving from New Haven to Boston to visit a friend when he saw a familiar sight in his rearview mirror — flashing police lights. It was late at night, and McHarris ...

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 ...

“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 ...

An election year in the FiveThirtyEight newsroom is unlike any other year. We started off by launching our Democratic primary forecast in January, and once Joe Biden had effectively clinched the ...