On October 2, 2007, Erik Prince attended a congressional hearing conducted by the Committee on Oversight and Government Reform following the controversy related to Blackwater's conduct in Iraq and Afghanistan. Blackwater hired the public relations firm BKSH & Associates Worldwide, a subsidiary of Burson-Marsteller, to help Prince prepare for his testimony at the hearing. Robert Tappan, a former U.S. State Department official who worked for the Coalition Provisional Authority in Baghdad, was one of the executives handling the account. Burson-Marsteller was brought aboard by McDermott Will & Emery and Crowell & Moring, the Washington law firms representing Blackwater. BKSH, a self-described "bipartisan" firm (Hillary Clinton, when pursuing the Democratic presidential nomination, was also a client), is headed by Charlie Black, a prominent Republican political strategist and former chief spokesman for the Republican National Committee, and Scott Pastrick, former treasurer of the Democratic National Committee.