General Michael Fly i ruski veleposlanik u Sjedinjenim Državama, Sergej Kislyak
In one inquiry, code-named Operation Echo, investigators opened a leak case into a Washington Post column about phone calls in late 2016 between Sergey I. Kislyak, the former Russian ambassador to the United States, and Michael T. Flynn, then Mr. Trump's incoming national security adviser. The leak was one of several matters under scrutiny by John H. Durham, the special counsel investigating the officials who opened the Russia investigation.

Prosecutors in the U.S. attorney's office in Washington investigated whether the disclosures came from former Obama administration officials who had access to sensitive information about the phone calls, according to two people familiar with the investigation. The investigators ultimately found no wrongdoing, one of the people said.

Prosecutors in Washington also recommended that the office close its investigation into Walid Phares, a former Trump campaign adviser suspected of secretly working on behalf of the Egyptian government in the months before Mr. Trump took office to influence the incoming administration.

Michael R. Sherwin, the acting U.S. attorney in Washington, signed off on closing both of the cases on prosecutors' recommendations, according to a person familiar with the investigations. A Justice Department spokesman declined to comment.

For the full article (which focuses on the case of William Burr, go to NYT.