If Ms Harris struggles to knit together her biography, her principles and her policies, she will also struggle in a president’s crucial role: explaining to the nation how it should meet adversity.
It may seem unfair to criticise Ms Harris for being sparing about her policies. Her overriding task is to defeat Mr Trump, and it is a vital one in which guile and cunning are permitted. For good or ill, political campaigning is often about finding wedge issues to stir up your base. If wonkery and reams of policy papers were the secret to electoral success, Hillary Clinton would not have lost in