FILE - This is a Thursday, Aug. 31, 2017. file photo of European Commission President Jean-Claude Juncker, left, as he welcomes former British Prime Minister Tony Blair prior to a meeting at EU headquarters in Brussels. Blair on Thursday Jan. 4, 2018 was pressing his view that voters should be given a chance to re-think Brexit once plans for Britain's departure from the European Union are clear. (AP Photo/Virginia Mayo, File)