Greek Prime Minister Antonis Samaras delivers a speech to his supporters at the center-right New Democracy party's main election rally in Syntagma Square in Athens, Greece, May 23, 2014. Greek Prime Minister Antonis Samaras on Friday evening urged Greek voters to cast a vote "in favor of political stability" rather than "risk a retreat to uncertainty" in the forthcoming May 25 elections for the European Parliament and Greece's municipal and regional councils. (Xinhua/Marios Lolos)