In our previous Year of Elections episode, we looked ahead to the Republican and Democratic National Conventions. A lot has changed since.

After all, this is a historic election. Mr Biden is the first sitting president in more than 50 years to drop out of a presidential race and his anointed successor would be the first female president in US history.

But while this election seems essentially a contest between Mr Trump and Ms Harris, there are those who take pains to point out that these two candidates are not voters’ only options.

The US operates under a two-party system but only unofficially.