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After Theresa May became Prime Minister, one of the first jobs was to set out her vision for implementing Brexit. Integral to doing that were her Chiefs of Staff – Nick Timothy and Fiona Hill.

Mark Mardell considers how Mrs May positioned herself as the person to deliver Brexit, the influence her chiefs had at the time, and - as she approached her first party conference that Autumn – what her speeches said about how negotiations would progress.

Email: pm@bbc.co.uk Twitter: @Â鶹ÉçPM