A day after Greek Prime Minister Alexis Tsipras capitulated in Brussels to keep the euro zone together, he struggled Tuesday to keep his government from splitting apart. After a marathon 17-hour summit that turned into one of the most contentious diplomatic standoffs in European Union history, Tsipras acquiesced to a punishing ultimatum from his country’s European creditors. In exchange for a $96 billion rescue — Greece’s third in five years — he agreed to lightning-fast passage of reforms and a pledge to adhere to harsh austerity measures to save Greek banks and keep the country in the euro. (full story)