USA, 2020 Democratic primaries

buttigieg-col-marito

Pete Buttigieg and his husband, Chasten. They've been married since 2018 © Win McNamee/Getty Images

coralville-iowa

The first primaries took place in Iowa. Here we see voters in Coralville © Win McNamee/Getty Images

dubuque-iowa

Democratic voters queueing for the caucus in Dubuque, Iowa © Joe Raedle/Getty Images

ocasio-cortez

Alexandria Ocasio-Cortez, the youngest member of the US Congress, has given her support to Bernie Sanders © Chip Somodevilla/Getty Images

philadelphia

Biden supporters in Philadelphia, Pennsylvania © Drew Angerer/Getty Images

plymouth-new-hampshire

Robin Turpin, a university employee, shovelling snow in Plymouth, New Hampshire in preparation for a Pete Buttigieg rally © Win McNamee/Getty Images

warren-e-bimba

Elizabeth Warren meets a girl in Des Moines, Iowa. The Massachusetts senator came third in this primary, obtaining eight delegates © Chip Somodevilla/Getty Images

we-are-still-in

Michael Bloomberg is the founder of C40, a network of cities united in the fight against climate change. He also launched the We Are Still In movement to protest Trump's decision to leave the Paris Accord © Pablo Blazquez Dominguez/Getty Images