Former Burson-Marsteller CEO Tom Nides is returning to Morgan Stanley after a a stint in the Obama State Department.

Nides, a financial sector vet, did an eight-month stint atop Burson in 2005 after he was recruited by Howard Paster.

He left Burson for Morgan Stanley, where be became COO and a trusted aide to former CEO John Mack and current CEO James Gorman before exiting in 2010 for the deputy secretary for management and resources post at the State Dept.

Nides, who chaired Wall Street's lobbying arm, the Securities and Financial Markets Assn., is a former Clinton administration trade official and managed former Sen. Joe Lieberman's 2000 vice presidential campaign. He was chief administrative officer of Credit Suisse First Boston and SVP of Fannie Mae.

Nides takes a vice chairman post reporting directly to Gorman at Morgan Stanley. The investment bank said he will have "a broad mandate" focusing on global clients and key constituencies around the world. He will also work on external and government affairs.