BRUSSELS (AP) — European Union leaders are set Friday to authorize a new phase in Brexit talks involving future relations and trade with Britain. The anticipated clearance will provide a welcome boost to British Prime Minister Theresa May, who earlier this week lost a key parliamentary vote over giving lawmakers the final say on the Brexit deal before Britain leaves the EU in March 2019. May received a round of applause from EU leaders Thursday night after giving her assessment of progress in the talks. In a breakthrough last week, the two sides agreed that the first round of issues in the Brexit talks had advanced sufficiently for now.