May's lead narrows after Manchester attack placing landslide win in doubt

By Guy Faulconbridge and Michael HoldenLONDON (Reuters) - British Prime Minister Theresa May's lead over the opposition Labour Party has narrowed sharply, according to five opinion polls published since the Manchester attack, suggesting she might not win the landslide predicted just a month ago.Four opinion polls published on Saturday showed that May's lead had contracted by a range of 2 to 6 percentage points,indicating the June 8 election could be much tighter than initially thought when she c