The indictment alleges that Sun, who served as an advisor on international relations, engaged in activities that compromised U.S. national security by covertly working on behalf of China.
The charges, filed in a federal court, include conspiracy to act as an unregistered foreign agent and several counts of espionage-related offenses.
According to the indictment, Sun is accused of providing sensitive information and influencing policy decisions to benefit Chinese interests
Sun, who had been with the office for over five years, was reportedly involved in numerous high-level discussions and had access to classified information.
The investigation, which began, uncovered evidence suggesting that Sun was in contact with Chinese intelligence operatives and had been allegedly involved in attempts to manipulate US foreign policy
They argue that Sun’s actions were misinterpreted and that she was merely involved in routine diplomatic efforts.