As he raised his fist in defiance, the image of Donald Trump smeared in blood, is one that will shape the US election campaign and history.

The iconic image has sent shockwaves on social media, sparking several conspiracy theories – with some wondering if it was an order from the US President himself.

So, how do you spot the fact from fiction? And how will the assassination attempt change the campaign?

Robert Moore tells Yasmin Bodalbhai what you need to know...