EU chief executive: no post-Brexit deal without 'level playing field'

BRUSSELS — The European Union’s chief executive, Ursula von der Leyen, said on Wednesday that the bloc will do its best to seal an agreement on new ties with Britain by the end of the year but will not compromise its core values, notably on fair competition. Britain left the EU, the world’s largest trading bloc, on Jan. 31 after 47 years of membership, to the huge regret of the EU, and there has been little progress on designing a new relationship with a year-end...