Third parties and third-party candidates are not a new phenomenon in American politics. But this year, the stakes of their candidacies are especially high.
The list of third-party candidates running this year includes Robert F. Kennedy Jr. and Cornel West, both of whom are running as Independents. Jill Stein returns to the campaign trail as a representative of the Green Party.
What role do third parties play in elections? And how could they influence this year's presidential one—even if they don't win it?