Co-ruling PASOK Socialist party leader Venizelos waves at supporters during an election rally in Athens...
Co-ruling PASOK Socialist party leader Evangelos Venizelos waves at supporters during an election rally in Athens January 21, 2015. An early national election will be held on January 25 after the Greek parliament failed to elect a president. REUTERS/Alkis Konstantinidis (GREECE - Tags: POLITICS ELECTIONS)