Tonight S2018E40 - Trump and the Truth: America's Conspiracy Wars

In the US, it's estimated more than half of all Americans believes in at least one conspiracy theory, including their president. Donald Trump has weaponised conspiracy theories to great political effect, but his critics argue his perpetuation of myths is fuelling fear among the American population. Robert Moore examines the role conspiracy theories play in shaping the country's political future and asks who will win in America's battle for the truth.