ISTANBUL — Turkish President Recep Tayyip Erdogan has a vision for a “new Turkey” where he would preside over the country and build a regional military, political and cultural powerhouse from his sprawling new $600 million presidential palace in the capital of Ankara.But brawls in parliament over Mr. Erdogan’s proposal to give more power to the security services, growing charges of his authoritarianism and blowback over his perceived reluctance to confront the Islamic State militants have become hurdles in the way of Turkish leader’s lofty strongman ambitions.
