Illustrating this turbulent time in American story

Mass protests are part of American history but the present chapter in the nation's story is especially turbulent. Where does politically-inspired art fit in?

The BBC's Nick Bryant went to the Whitney Museum in New York, where an exhibit looks back at the country's key moments of protest.

Artwork by Keith Haring, Annette Lemieux, Donald Moffett, Carl Pope, Faith Ringgold, Dread Scott and Carol Summers