Explaining Obama’s intervention: why an EU without Britain would be the worst of all worlds for the United States

President Obama has outlined his opposition to Britain leaving the European Union during an official visit to the country, but what explains the American position on Brexit? Malcolm Craig writes that the historical roots of Obama’s stance stretch as far back as the 1940s and that the perception from across the Atlantic is that there is little to gain for Britain, Europe or the United states from a Brexit.