Artists represented in an exhibition of protest art in London voiced concerns to the museum over its hosting of an event for a defense contractor.

Then, in an ironic twist, some artists of the protest art came to withdraw their artwork from the Design Museum in London, in protest. Artist demonstrators held signs reading: #NopeToArms. In all, 29 artworks were removed from the popular exhibition on Thursday, which is set to close Aug. 12.

Hope to Nope: Graphics and Politics 2008-18 examines the pivotal role of graphics in milestone events such as the election of Barack Obama, the worldwide Occupy movement, the Arab Spring, Brexit and Donald Trump’s presidency. It explores the trajectory from ‘Hope’ to ‘Nope’, as represented by the iconic Barack Obama ‘Hope’ poster by Shepard Fairey and the many imitations that followed, including the Donald Trump ‘Nope’ meme.