In just a few weeks, Hungary’s party system has been turned upside down by Péter Magyar’s newly founded Tisza Party. According to the current situation, five lists could be sending representatives to the European Parliament, but there is unusually large variation among surveys regarding whether the leading force of the opposition stands behind Péter Magyar or former Prime Minister Ferenc Gyurcsány. An averaging of the polls might bring us closer to the truth. Péter Magyar’s Tisza Party refutes decades of experience: what can we learn from the diverging polls?