Jenny Shipley of the Council of Women World Leaders, an international network of current and former women presidents and prime ministers. Shipley led the National Party into the 1999 election, hoping to become the first woman to be elected prime minister in her own right. However, she was defeated by the Labour Party, also led by a woman, Helen Clark. This election was a significant moment in history for New Zealand as it was the first (and to date, only) New Zealand election in which the leaders of both major parties were women. Shipley served as the Leader of the Opposition until
Deputy Prime Minister of Canada deputy premiership to the premiership of British Columbia in 1999, following the resignation of Glen Clark, and Kathy Dunderdale ascended from the deputy premiership to the premiership of Newfoundland and Labrador in 2010, following the resignation of Danny Williams. Extended notice is usually given when a sitting prime minister does not plan to lead his/her party into another election. Leadership contests to determine the successor to a prime minister are usually held during the final days of the incumbent's term, and are traditionally a lengthy and competitive process. In almost all cases, the outgoing prime minister hands over power directly