Fofi Gennimata, Panos Kammenos, Dimitris Koutsoumpas, Stavros Theodorakis, Panagiotis Lafazanis, Vangelis Meimarakis From left, PASOK Socialist party leader Fofi Gennimata, head of the Independent Greeks Panos Kammenos, General secretary of Greece's Communist Party Dimitris Koutsoumpas, leader of Potami party Stavros Theodorakis, Panagiotis Lafazanis leader of the Popular Unity, main opposition conservative New Democracy head Vangelis Meimarakis and the leader of the left-wing Syriza party and former Greek Prime Minister Alexis Tsipras wait for the start of a live televised debate at the state-run ERT television in Athens, . The leaders of all but one of Greece's main political parties hold a live televised debate for the first time in six years on Wednesday night before the country's Sept. 20 early election