The foundation case — which had been spread among F.B.I. field offices in New York, Los Angeles, Washington and Little Rock, Ark. — sputtered until Mr. Trump was elected. In early 2018, Patrick C. Harris, a career prosecutor in Little Rock, issued a grand jury subpoena for foundation records, two former law enforcement officials familiar with the investigation said.
A foundation official confirmed that the charity was served with a subpoena and complied with the request for information.
Republicans in 2017 had called for a second special counsel to investigate the foundation, but Rod J. Rosenstein, then the deputy attorney general, did not believe the scant evidence collected in the case justified one, a person familiar with the matter said. Instead, Jeff Sessions, the attorney general at the time, asked John W. Huber, the U.S. attorney in Utah, to review whether federal law enforcement officials had fully investigated the matter.
Shortly after Mr. Durham began his review, Mr. Barr said in an interview with CBS News in May 2019 that Mr. Huber was winding down his work related to Mrs. Clinton. In January, The Washington Post reported that Mr. Huber’s investigation had ended; its findings were not made public. Mr. Trump later attacked Mr. Huber, accusing him of doing “absolutely NOTHING.”
Adam Goldman reported from Washington, and William K. Rashbaum and Nicole Hong from New York. Katie Benner and Michael S. Schmidt contributed reporting from Washington.