'Window is closing' for May as speculation rises over leadership challenge

MPs on both sides of the Brexit debate are becoming increasingly vocal -boosting speculation that Theresa May will be subject to a leadership challenge.Leading backbencher Johnny Mercer said the "window is closing" for the Prime Minister to reinvigorate the Conservatives' fortunes.At the weekend, the MP for Plymouth Moor View said Jeremy Corbyn could become Prime Minister unless the Tories "get our s*** together".