
Share of popular votes for major parties in US presidential elections 1860-2020
Since the 1860 election, U.S. presidential elections have been dominated by candidates affiliated with the Democratic and Republican parties. While the electoral votes decide the winner of the election, these are generally decided by the winner of the popular vote in each state (or district), and the winner of the nationwide popular vote does not always go on to win the electoral vote. Interestingly, there have been a number of occasions where the winner of the popular vote did not go on to win the electoral vote, for example in the 2016 election, or, most famously, in 2000.