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President Eisenhower, who had briefly served as the president of Columbia University before the election, believed American colleges were important to a rising middle class and endorsed generous funding for them.

American presidents going back to Dwight D. Eisenhower in the late 1950s have complained, with good reason, about Europeans getting a free ride from the US security blanket over Europe.

I have memories of President Eisenhower on television.

He's also known generations of previous US leaders, all the way back to visiting Nixon in the White House and meeting Eisenhower at Balmoral.

King Charles, who was 10 years old when his mother hosted Eisenhower in 1959, has now extended a rare invitation to the current US president to meet him in Scotland.