Leader of the Opposition
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In a phone call to the Prime Minister of the United Kingdom, Jack Harkness asked why Torchwood Institute operations had become part of their security briefings to the Leader of the Opposition. (TV: Greeks Bearing Gifts)
In a parallel universe, Harriet Jones was the Leader of the Opposition. She had lost an election to Margo Kinnear, who became Prime Minister of the United Kingdom. (AUDIO: The Flood)
In 2540, Congressman Brook was Leader of the Opposition in the government of the Earth Empire. (TV: Frontier in Space)