LONDON—Prime Minister Theresa May said on Jan. 6 that Britain would be in uncharted territory if her Brexit deal is rejected by parliament later this month, despite little sign that she has won over skeptical lawmakers.
Britain is due to leave the European Union on March 29 but May’s inability so far to get her deal for a managed exit through parliament has alarmed business leaders and investors who fear the country is heading for a damaging no-deal Brexit.