12. Five miscalculations and a resignation
Mark Mardell asks whether David Cameron's decisions over Europe led to his own demise
When the Conservatives won the 2015 election, David Cameron reiterated his manifesto promise to hold an in-out referendum on Britain's membership of the EU. Not long after, the starting gun was fired and the battle lines drawn.
What followed? It's a well charted path; but Mark Mardell talks to the people who were there at the key moments, to see what they think the defining factors are, and whether they think things could - should - have been done differently.
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