However , Brown faced down his critics and was applauded at a meeting of the Parliamentary Labour Party on 8 June 2009 .
All of these events led to mounting speculation about Brown 's future as Prime Minister and a possible leadership challenge .
Brown faced down Brown 's critics and was applauded at a meeting of the Parliamentary Labour Party on 8 June 2009 .
All of these events led to mounting speculation about Brown 's future as Prime Minister and a possible leadership challenge .