The United States has led the free world for the best part of a century, producing a record number of truly great world leaders, among whom, it can be confidently predicted, objective future historians will unhesitatingly include President Donald Trump.

It was Winston Churchill who not only handed the mantle of world leadership to a hitherto reluctant America, but who also created the special relationship with the United Kingdom, providing crucial war-time support, a reason why he is still so highly regarded in the US.