NEW YORK--(BUSINESS WIRE)--Blackstone (NYSE: BX) announced today that Thomas R. Nides, former long-time Vice Chairman of Morgan Stanley, Deputy Secretary of State, and Ambassador to Israel has joined the firm as Vice Chairman, Strategy and Client Relations. In this new role, Mr. Nides will support a variety of strategic firmwide initiatives and special projects, as well as focus on senior client relationships globally. Stephen A. Schwarzman, Co-Founder, Chairman and CEO said: “ We are delighted to welcome T ...