sentences:  On 7 September, Jack Straw stated that he expected the Prime Minister to announce a timetable for his departure in May 2007 and Blair announced that the September 2006 Labour Party Conference and TUC Conference would be the last he would attend as party leader, despite which he was heckled at the Trades Union Congress on 12 September by members calling for him to resign immediately.On 23 September, John Hutton became the first serving Cabinet Minister to say that Gordon Brown should face a serious challenger for Labour's leadership.At the 2006 Labour Party Conference on 25 September, Brown announced his candidacy for the leadership, while three days later at the same conference John Prescott announced that he would stand down when Blair resigned as Prime Minister.