A new 538 analysis of voting data reveals that while many members’ formal caucus affiliations matched up pretty well with their voting behaviors, some did not. We analyzed every House floor vote from ...

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 ...

FiveThirtyEight’s NBA player projection system identifies similar players throughout NBA history to determine what a current NBA player’s future might look like.