Greek main opposition New Democracy party leader Kyriakos Mitsotakis delivers his victory speech in Athens, Greece, on May 26, 2019. Greek main opposition conservative New Democracy (ND) party leader Kyriakos Mitsotakis called Greek Prime Minister Alexis Tsipras to quit so that Greece will be led to early national elections, after the results of the European parliament and local parliament elections on Sunday. (Xinhua/Marios Lolos)