MarketsPound Slides to One-Month Low After Brexit Talks StallTusk accuses Johnson of playing blame game with European UnionAnalysts see extension of negotiations as most likely scenarioFacebookXLinkedInEmailLinkGiftExpandPhotographer: Jennifer West/BloombergFacebookXLinkedInEmailLinkGiftGift this articleContact us:Provide news feedback or report an errorConfidential tip?Send a tip to our reportersSite feedback:Take our SurveyNew WindowFacebookXLinkedInEmailLinkGiftBy Charlotte RyanOctober 8, 2019 at 1:16 PM UTCBookmarkSaveLock This article is for subscribers only.Follow @Brexit and sign up to our Brexit Bulletin. The pound tumbled to a one-month low after U.K. Prime Minister Boris Johnson told German Chancellor Angela Merkel a Brexit deal is impossible under terms the European Union demands.