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Baroness Trumpington's secret of dealing with Thatcher

22 June 2014 Last updated at 09:27 BST

Baroness Trumpington, a former minister in Mrs Thatcher's government, spoke to Andrew Marr about her colourful career.

She said the secret to dealing with Margaret Thatcher was that "I didn't give a damn, I had to be true to myself".

Watch The Andrew Marr Show in full on the BBC iplayer.