Investigative journalist John Solomon has uncovered a smoking-gun email from Obama's Deputy Attorney General Sally Yates explicitly ordering FBI agents to shut down a criminal corruption probe into the Clinton Foundation.

Thanks to Judicial Watch, the American public was made aware of Hillary Clinton's private email server.

Hillary Clinton conducted official business on a non-government server so she could hide her Clinton Foundation pay-to-play while she was head of the Department of State.

According to emails obtained by Judicial Watch, Hillary Clinton gave preferential treatment to Clinton Foundation donors while she was Secretary of State.

In fact, Judge Royce Lamberth previously said Clinton's use of private emails was "one of the gravest modern offenses to government transparency."

Now, according to John Solomon, the investigation, quietly running in New York, Washington, D.C., and Little Rock, was reportedly a fully predicated criminal case examining whether Hillary Clinton, as Secretary of State, ran a pay-to-play influence racket.

According to Solomon, FBI agents had reason to believe foreign nationals and other deep-pocketed donors bought access and favors from the State Department in exchange for massive contributions to the Clinton Foundation, all while the Obama DOJ looked the other way.

At the time, then–FBI Deputy Director Andrew McCabe, whose wife took campaign cash from a Clinton ally while he personally attended the meeting to solicit the funds, allegedly locked down the investigation, ordering that no action be taken without his personal approval.

Four separate U.S. Attorneys' offices under Obama were approached by FBI agents for help with subpoenas, grand juries, and evidence gathering. Three of the four refused outright.

The most damning piece, however, according to John Solomon, is the document uncovered by FBI Director Kash Patel.

In it, Deputy AG Sally Yates directly instructs the FBI to "shut it down" the Clinton Foundation investigation, effectively granting the Clintons immunity from further scrutiny during the 2016 election cycle.

According to Solomon, several prosecutors have now stepped forward and are willing to cooperate with Congress and Trump-aligned investigators.

Patel reportedly has more explosive emails from Obama-era officials, which he intends to turn over to lawmakers.