Greek Prime Minister Alexis Tsipras, second right, gestures while speaking during a round table meeting at an emergency summit of eurozone heads of state or government at the EU Council building in Brussels on Tuesday, July 7, 2015. Greek Prime Minister Alexis Tsipras on Tuesday will try to use a resounding referendum victory to eke out concessions from European creditors over a bailout for the crisis-ridden country. From left, French President Francois Hollande, Spanish Prime Minister Mariano Rajoy and Italian Prime Minister Matteo Renzi. (AP Photo/Michel Euler)