Ukraine's Energy ChallengeBBC: EU exit would leave Britain with zero influence, says BarrosoBy BBC. Published Oct. 19, 2014 at 7:20 pm European Commission president Jose Manuel Barroso (R) during press conference with Ukrainian President Petro Poroshenko in Kyiv on September 12, 2014. Photo by (President press service/Mykola Lazarenko)The UK would have "zero" influence if it voted to leave the EU, the outgoing president of the European Commission has said. Read more here