If Faisal Islam, Ralph Keyes and the New York Times are to be believed, the Trump candidacy and the vote for Brexit show we've entered a post-truth era – a world where emotion and populism win out over facts and experts. But is it true? And do emotional appeals really trump facts and figures?

Two-thirds of Americans are stressed about the future of their country, but being politically active – from reading bills to contacting Congress – can be confusing and time-consuming. Civi aims to simplify things by letting users have someone call their representative about an issue on their behalf.

The NRA’s latest advert is a call to arms that pits gun-toting Americans against those supposedly destroying their nation – but keeps this group unnamed. By leaving the aggressors anonymous, the NRA is playing off a polarised society that can find enemies in anything.

While populism sweeps through Europe and North America, German voters are comparitively immune. With collective anger seen as a driving force for populism, and German sentiment towards the government less emotionally charged than other countries, populism is a tough sell to Germans.