Trials, drop-outs and assassination attempts: 15 moments that defined the US election campaign

It has been called the most critical election in US history, and it has certainly been one of the wildest races, with an incumbent president stepping down late in the campaign, a criminal guilty verdict for one of the candidates and a couple of assassination attempts. We revisit the key moments, played out against the backdrop of two seismic global conflicts, of a political struggle that holds American democracy itself in the balance.

The challengers