2020 Green Party presidential primaries

The 2020 Green Party presidential primaries were a series of primary elections, caucuses and state conventions in which voters elected delegates to represent a candidate for the Green Party's nominee for President of the United States at the 2020 Green National Convention. The primaries, were held in numerous U.S. states on various dates from early spring into early summer of 2020, and featured elections publicly funded, concurrent with the Democratic Party and Republican Party primaries, and elections privately funded by the Green Party, held non-concurrently with the major party primaries.

Source: Wikipedia — 2020 Green Party presidential primaries (CC BY-SA 4.0)