(1911 – 1978) As a US senator from Minnesota (1948–65 and 1970–8), Humphrey was a key supporter of the Civil Rights Act of 1964. While serving as vice-president under Lyndon B. Johnson (1965–9), he won a bitter fight for the 1968 Democratic presidential nomination that saw the party sharply divided over US involvement in the Vietnam War.

Against a backdrop of violent clashes between antiwar protesters and police in the streets, Humphrey was steadfast in his support for the Johnson administration’s Vietnam policy earning him a lasting reputation for loyalty to the establishment.