Jean-Luc Mélenchon’s rise to prominence since 2015 has often been compared to the contemporaneous if more ephemeral success of Jeremy Corbyn in Britain and Bernie Sanders in the United States. But to the extent that La France insoumise looks to foreign models, it usually invokes the Five Star Movement in Italy, for its canny use of new media, or Podemos in Spain and Syriza in Greece, for their radical hostility to neoliberal capitalism.