Rep. Devin Nunes, R-Calif., said Maltese academic Joseph Mifsud — the man who told former Trump campaign adviser George Papadopoulos the Russians had thousands of Hillary Clinton’s emails — likely has links to “U.S., British, and Italian intelligence services” and the State Department where Clinton served as the country’s top diplomat.

Mifsud, a London-based professor and former Maltese diplomat, has long been suspected of deep ties to Russian intelligence. He is an elusive figure who has stayed out of the spotlight and is the subject of a letter Nunes, the House Intelligence Committee ranking member, sent to U.S. intelligence agencies and the State Department on Friday seeking relevant documents.