How well U.S. presidential front runner does depends on whether the Democratic Party is returning to its roots when it was able to attract working class voters and people without college degrees. Over the years since Harry Truman's presidency the Republican party was able to peel off less educated working class white voters from the Democratic party on the basis of religion, race, gender and traditional attitudes to culture. Could this have gone too far and will the Democratic Party in the U.S. fight to recover support from its traditional base of common people, just as the Labour Party in Britain under Jeremy Corbyn sees itself as defending working class and common people's aspirations. Biden's future depends on how much he can rally the party back to its roots with his Harry Truman like style and fighting spirit. Few American presidents in the modern period could match the courage, simplicity, openness and tenacity of Harry Truman, which is why he was able to come from behind and win in 1948 elections after the death of president Franklin Delano Roosevelt in 1945. ...