One thing is immediately striking: as he addresses primary rallies across America, arms flailing like a giant bird coming in to land, snow-white hair fizzing skywards like Doc Brown’s in Back to the Future, eyes startled behind the robust spectacles he has worn since childhood, Bernie Sanders looks quite unlike any other presidential candidate.
Perhaps the surprise in those eyes is sparked by the size of the crowds Sanders has been attracting. They are enormous, rivalling the numbers who turned out for Barack Obama back in 2008, and unprecedented for a candidate who is not shy of describing himself as a socialist: 28,000 in Portland and LA, 25,000 in Boston and 15,000 in Seattle. Even in Dallas, not a renowned centre of radicalism, 8,000 turned out to “feel the Bern”.