May faces embarrassing Brexit defeat in upper house

Britain's upper house of parliament is expected to inflict an embarrassing defeat on Theresa May's government on Wednesday, challenging her refusal to remain in a customs union with the European Union after Brexit.The prime minister, who has struggled to unite her Conservatives over Brexit, has said Britain will leave the EU's single market and customs union after it quits the bloc next March so that London can negotiate its own free trade deals.