The staff member, Kyle Parker, is the senior Senate adviser for the U.S. Commission on Security and Cooperation in Europe, known as the Helsinki Commission. The commission is led by members of Congress and staffed by congressional aides. It is influential on matters of democracy and security and has been vocal in supporting Ukraine. A confidential report by the commission’s director and general counsel, which The New York Times reviewed, said that the equipment transfer could make Mr. Parker an unregistered foreign agent. It said that Mr. Parker had traveled Ukraine’s front lines wearing camouflage and Ukrainian military insignia and had hired a Ukrainian official for a U.S. government fellowship over the objections of congressional ethics and security officials.

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Persons: Kyle Parker, Parker Organizations: Capitol Hill, U.S . Commission, Security, Cooperation, Helsinki Commission, New York Times Locations: Russia, Europe, Helsinki, Ukraine