The position of the flag indicates whether the organization is partisan. Organizations are considered partisan if they operate on behalf of a candidate, party, campaign committee, PAC, super PAC, ...

You’re a social scientist with a hunch: The U.S. economy is affected by whether Republicans or Democrats are in office. Try to show that a connection exists, using real data going back to 1948. For ...

We’ve simplified trade dramatically: You’re engaging in 100 rounds of trade with a randomly chosen FiveThirtyEight reader. In each round, you and your trade partner can either cooperate (allow free ...

Partisan lean is the average difference between how a district votes and how the country votes overall, where 2016 presidential election results are weighted 50 percent, 2012 presidential election ...