Black and white still from footage shows a car
Media playback is unsupported on your device

Iain Duncan Smith: Resignations that rocked politics

21 March 2016 Last updated at 20:00 GMT

Iain Duncan Smith has resigned, but he is certainly not the first to shake government by leaving.

BBC Rewind looks back on other exits that rocked the establishment, from Jeremy Thorpe's murder charge, to Geoffrey Howe's take down of Thatcher.