FRANCE 24's Nadia Massih welcomes Dr Richard Johnson, Senior Lecturer in US Politics & Policy at Queen Mary University of London. As Dr. Johnson illustrates, "this is a very polarised electorate" one week out from America's historic presidential election. The race between Republican Donald Trump and Democrat Kamala Harris has divided the US electorate along lines of gender, race and education. "People are not easily changing their mind or switching their votes," explains Dr. Johnson.