The Prime Minister is facing facing fresh questions about his election chief Lynton Crosby after it emerged his firm advised a private health alliance at the time of the Government's controversial NHS reforms.
The Australian strategist's company Crosby Textor advised an umbrella group of private healthcare providers on how to exploit perceived "failings" in the NHS, according to a leaked document obtained by The Guardian.
David Cameron has already had to defend Mr Crosby over claims of lobbying over cigarette packaging.
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