The New York Times quoted sources described by the insider as saying that the FBI and the Office of the Special Investigator Robert Mueller investigated whether the former Trump campaign advisor, Walid Fares, had secretly worked for the Egyptian government to influence the US administration in the months before President Donald Trump took office.

These sources revealed that Walid Fares was one of five aides in the Trump campaign who were interrogated about their relations with foreign countries.

The sources added that the decision to investigate Fares' relationship with the Egyptian government was based on highly classified information and that the investigation lasted for several months without any charges being brought against him in the end.

The newspaper indicated that Fares declined to comment, as was the Ministry of Justice spokeswoman. The sources said that the CIA director at the time, Mike Pompeo, had seen the investigation, indicating that the agency may have obtained information from an Egyptian source that had strengthened the FBI investigation.

The newspaper reported that Fares joined the foreign policy team that Trump collected in the spring of 2016 and that the FBI investigated four other Trump campaign advisers regarding their relations with Russia as part of the Office's original investigation of Moscow's interference in the elections, and then began investigating relations Fares, Egypt, as part of this investigation.

She added that Faris, a Lebanese-born Maronite Christian, was perhaps one of Trump's most prominent foreign advisers as he appeared repeatedly on Fox News to discuss "the dangers of Islamic terrorism and Islamic law."

The newspaper pointed out that hints about the investigation into Persia appeared in Mueller's revised documents, and in the notes of the FBI interview obtained by BuzzFeed News in a lawsuit.

Sam Clovis, another Trump campaign official, told the team of investigators who worked with Muller that Fares had high-level contacts in the Egyptian government and contacts with the Deputy Minister of Education.

The newspaper adds that Fares told Clovis that he has friends who can mediate meetings between the campaign and the Egyptian government, but Clovis rejected this idea.