The British Churchill, upon becoming aware of the American Churchill's books, wrote to him suggesting that he, the British Churchill, would sign his own works "Winston Spencer Churchill", using his full surname , "Spencer-Churchill", to differentiate the books of the two authors. This suggestion was accepted, with the comment that the American Churchill would have done the same, had he any middle names.   In practice, after a few early editions this was abbreviated to " Winston S. Churchill "—which remained the British Churchill's pen name .
By his re-election in 1951, Churchill was, in the words of Roy Jenkins, “gloriously unfit for office”. Ageing and increasingly unwell, he often conducted business from his bedside, and while his powerful personality and oratory ability endured, the Prime Minister’s leadership was less decisive than during the war. His second term was most notable for the Conservative Party’s acceptance of Labour’s newly created Welfare State, and Churchill’s effect on domestic policy was limited. His later attempts at decreasing the developing Cold War through personal diplomacy failed to produce significant results, and poor health forced him to resign in 1955, making way for his Foreign Secretary and Deputy Prime Minister, Anthony Eden .