Mark Clack is a new senior vice president at Cassidy & Associates. He was a senior adviser assisting foreign countries with U.S. relations at KRL International.

Gordon Johndroe, former deputy White House press secretary  has joined APCO Worldwide as a vice president of government relations in Washington.

Marne Levine, former White House economic adviser, was hired by Facebook to be its new vice president of global public policy. Tim Sparapani will remain as director of Facebook’s DC office in charge of outreach to Congress and the federal government.

Singleton McAllister, Weldon Rougeau and Ronald Thomas II have joined Blank Rome’s government relations group as well as its subsidiary, Blank Rome Government Relations. The trio joins from LeClairRyan.

Jim Ray has been hired as a senior adviser at Venn Strategies LLC.

James P. Moore Jr. has been hired as a senior counselor at APCO Worldwide, where he will also be a member of the company’s international advisory council.