The Trump and Bernie bases overlap. The photo depicts the disaffected old school labor-Democrats that voted for Reagan, and their younger equivalents.
The USA is a nation with very low standards of education and a corrupt bureaucracy and congress and presidency. All are hamstrung and pork barrelling to satisfy their electoral or political dependents. Other nations call lobbying "Corruption". So the patient is etherised on the table and the coup's work will be slender barring a great renewal. That's why Trump is a popular favorite. America is an empire which lost its' republic post WW 2 in the Cold War - that process which Lillian Hellman called 'Scoundrel Time'. An informed politically independent and militant working-class beholden to neither bourgeois party is needed today. I see few signs of democratic renewal.
Frankly, the workers have to a great extent been lulled and dumbed down into a level where there is the most ill informed sub primary-school global education. And without education there is no vision and without vision the people perish. So the dying of America as global empire is underway- a very dangerous time. America needs no enemy, America has become its own enemy. The positive energies of US liberal democracy have been exhausted.