The weekend after Viktor Orbán's landslide election victory, approximately 100,000 Hungarians assembled to protest against the government’s politics. Organizers demanded a new ballot and an overhaul of the election system, saying current rules favored the incumbent. They urged new protests next weekend. Opposition parties have called for a probe into alleged irregularities in voting, citing criticism by the Organization for Security and Cooperation in Europe that opposition parties did not have a level playing field in last weekend's election in Hungary.