The investigation follows a separate probe by the State Department's Office of the Inspector General into Guilfoyle and the U.S. Embassy in Athens. Text messages reviewed by The Wall Street Journal show Guilfoyle urging donor Eric Deters to wire money to American Express so the transaction would not leave a paper trail. Former President Donald Trump has denied knowledge of the debt, and Secretary of State Marco Rubio has refused to comment on the validity of the messages, though he defended Guilfoyle's diplomatic performance.
