Populism is not an ideology, it is, therefore, intrinsically neither right nor left wing, but it may depending on the circumstances display elements ideological considered to be of the right or the left. As wrote Pierre-André Taguieff, who is based on an analysis of the political scientist rennes Yves Mény, in his book entitled ‘The revenge of nationalism’ (published in 2015), the populist movements appear when political parties do not respond to a strong demand for a substantial part of the people.