John Major in 1995
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Resignations: Major, Thatcher, Aitken, Cook, Short, Purnell

Politicians are often asked when they will stand down, and so it is important that when they do, they get both the resignation statement and its timing right.

In a Daily Politics film, Giles Dilnot looks into the archives at how some big names decided to call it a day, with some of Westminster's more memorable departures.

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