Sedgefield (UK Parliament constituency) the Member of Parliament was Tony Blair; who led a successful campaign for his party to win the 1997 general election in a landslide and thereafter served for ten years as the Prime Minister, leading the campaigns at two subsequent general elections. Blair was the first Prime Minister to lead the Labour Party to three consecutive victories. He resigned as the Member of Parliament for Sedgefield on the same day as he resigned as Prime Minister, which triggered a by-election. At the by-election on 19 July 2007, the official Labour Party candidate Phil Wilson was elected on a reduced majority
Ex officio member may not be limited by the body's regulations or bylaws. In some groups "ex officio" members may frequently abstain from voting. Any "ex officio" membership (for example, of committees, or of the board) is as defined by the nonprofit association's bylaws or other documents of authority. For example, the bylaws quite often provide that the organization's president will be "ex officio" a member of all committees, except the nominating committee. The Vice-President of India is "ex officio" Chairman of Rajya Sabha, the Upper House of the Indian Parliament. The Prime Minister of India is "ex officio" Chairman of NITI Aayog.