David Cameron has been appointed the Prime Minister of the U.K. Which of his predecessors did the most for American interests?

Winston Churchill, without whom the Allied forces could not have won WW2 39%

Margaret Thatcher, whose alliance with Reagan helped end the Cold War 35%

Tony Blair, for his staunch support of the Iraq and Afghanistan wars 16%

Lord North, who led Britain into the American War of Independence 9%

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