As Péter Magyar's opposition movement leads in the polls, tens of thousands of anti-Orbán supporters fill Heroes' Square in Budapest.

Former Viktor Orbán loyalist and his Tisza party have enjoyed meteoric rise as opposition movement grows

Challenger Péter Magyar is no progressive – and after 16 years of creeping authoritarianism, the PM has embedded Fidesz in the Hungarian state, say Gabriela Greilinger and Cas…