No time for Brexit delays, says UK's May as poll lead slips

By William JamesLONDON (Reuters) - British Prime Minister Theresa May will on Monday urge voters to back her to deliver the country's exit from the European Union, playing one of her strongest cards in the election campaign as opinion polls show that her party's large lead has shrunk.A series of polls ahead of Britain's June 8 election have shown the Conservatives' lead over Jeremy Corbyn's Labour Party has fallen to between 9 and 13 percentage points, well down on leads of 20 points or more bef