Obama would be hypocritical to back EU 'In' vote, says Boris Johnson

It would be hypocritical of President Barack Obama to support Britain staying in the European Union because Washington would never share its own sovereignty, London Mayor Boris Johnson said ahead of a visit by the U.S. leader. Obama is expected to back Prime Minister David Cameron with a show of support for Britain keeping its EU membership on a visit to London next week ahead of an in-out vote on June 23.