according to wikipedia...
Agencies and employees prohibited from engaging in partisan political activity
Employees of the following agencies (or agency components), or in the following categories, are subject to more extensive restrictions on their political activities than employees in other departments and agencies:
Administrative law judges (positions described at 5 U.S.C. § 5372)
Central Intelligence Agency
Contract Appeals Boards (positions described at 5 U.S.C. § 5372a)
Criminal Division (Department of Justice)
Defense Intelligence Agency
Federal Bureau of Investigation
Federal Election Commission
Merit Systems Protection Board
National Geospatial-Intelligence Agency
National Security Agency
National Security Council
Office of Criminal Investigation (Internal Revenue Service)
Office of Investigative Programs (Customs Service)
Office of Law Enforcement (Bureau of Alcohol, Tobacco, Firearms and Explosives)
United States Office of Special Counsel
Secret Service
Senior Executive Service
I don’t see Presidential Spokesperson listed.