Jeremy Corbyn and Donald Trump; Erdogan in Turkey and the Five Star Movement in Italy; Podemos in Spain and Rodrigo Duterte in the Philippines. All of them have been described as populists. But what does ‘populism’ actually mean? How can it include people with wildly different ideologies under the same umbrella? Is it possible to be a progressive populist – and even if it is, should progressives use that label? Ayeisha Thomas-Smith is joined by academic and writer Eliane Glaser, and Michael Walker from Novara Media.