Populist politicians have to deal with a foundational paradox, i.e. ruling without being contaminated by the corrupting influence of power - Strategies to shield populists' political actions from the accusations that populist parties have flung against pre-existing elites - The Italian Five Star Movement as a populist political discourse resorting to legalist strategies - Legalism as a way of introducing political reforms as mandatory actions, required by some sort of exclusionary, pre-existing legal rule rather than the product of ideological confrontation and political compromise - Populism as an anti-political response to factionalism - Lottery system, absolute neutrality and the end of politics