Brexit deal made harder by May comments - EU official

British Prime Minister Theresa May's speech to the UK parliament on Monday has shown that reaching a deal on the country's exit from the European Union will be even harder than expected, a senior EU official said on Tuesday.May urged the EU not to allow a stand-off over a 'backstop' for Ireland to derail Brexit talks, saying she believed a deal was still achievable.A summit of EU leaders this week will decide if there is enough progress for another summit on Brexit in November, the official said