The unacknowledged elephant in the room at the convention thus far has been the roughly 30 percent of Americans who unconditionally support Trump because they believe they are threatened with extinction by liberal elites who hate white Christians. Trump himself is only important because they stand behind him. They are the force that potentially opposes liberal democracy in this country.
It will be up to Biden to reassure them if he really wants to bring the country together and protect the system. Will he try? I don’t know, but I certainly hope so.