We talk to historian Jill Lepore about the idea of nationalism in America, from the birth of the Republic through to Trump. What defines the nation? Why does the illiberal version keep getting the upper hand? Are there any politicians in America who can rescue the idea of liberal nationalism? Plus we ask Jill what she thinks of Johnson, Brexit and nationalism in the UK.
David talks to Gary Gerstle about the history of the United States Constitution and its current role in American political life. Is it still fit for purpose in the twenty-first century and what could be done to change it?