A Department of Justice inquiry into former Secretary of State Hillary Clinton‘s involvement in a uranium deal is ending after investigators found nothing.

In 2018, former Attorney General Jeff Sessions appointed U.S. Attorney John Huber to investigate allegations that the Federal Bureau of Intelligence did not properly look into Clinton’s ties to the deal.

Huber reportedly reviewed documents and spoke with federal law enforcement officials in Arkansas who were investigating the Clinton Foundation.

Huber found nothing worth pursuing and ended the inquiry. However, the investigation has not formally ended yet, as no notification was sent to Congress or the DOJ.

While Clinton was Secretary of State, the Canadian mining company Uranium One was sold to a Russian firm. Because of its major U.S. holdings, the sale needed to be approved by nine U.S. agencies, including the State Department.

Critics of Clinton have claimed, without evidence, that the sale was approved in exchange for donations to her foundation. However, she was not directly involved in the approval process.

The original investigation found no evidence of wrongdoing, but Sessions re-opened the inquiry in 2017 due to increasing pressure from President Donald Trump.

Joyce Vance, a former U.S. attorney and law professor at University of Alabama, tweeted Thursday that Sessions only re-opened the probe to appease Trump.

“This appropriate result still doesn’t erase the unforgivable sin that AG Sessions committed by opening a criminal investigation to please the president,” she wrote. “DOJ is not a tool for presidents to use against people they think are their enemies.”