Obama Urges ‘Blood Brother’ Britain Not to Leave the EU

World Leaders Participate In Policy Discussion At Nuclear Security Summit
WASHINGTON, DC - APRIL 01: U.S. President Barack Obama (L) talks to Prime Minister of the United Kingdom David Cameron (R) during a scenario-based policy discussion of the 2016 Nuclear Security Summit April 1, 2016 in Washington, DC. U.S. President Barack Obama is hosting the fourth and final in a series of summits to highlight accomplishments and make new commitments towards reducing the threat of nuclear terrorism. (Photo by Alex Wong/Getty Images)
Photograph by Alex Wong—Getty Images