Senate Judiciary Committee Chairman Lindsey Graham has apparently finally decided to grow a backbone.

Many have been demanding to know how the unverified Steele dossier was used to launch the Russia witch hunt against President Donald Trump.

Now, Graham is finally taking action.

As noted by the Washington Examiner, the Department of Justice may force the FBI to turn over classified documents that Graham believes will further expose Democrats.

In a letter sent to Attorney General William Barr this week, Graham specifically requested information on Christopher Steele’s “primary sub-source,” someone who allegedly “undercut” his now-debunked anti-Trump dossier.

The FBI reportedly interviewed this “primary sub-source” as part of the Trump-Russia collusion probe. According to Graham, the source “substantially undercut Steele’s election reporting” and therefore Steele’s work.

In fact, Graham said that this information effectually calls “into question the accuracy and reliability of any of Steele’s reports,” including, of course, the dossier that Steele compiled for the Democratic Party.

Graham wrote:

“Christopher Steele’s election reporting, on which the FBI relied to obtain FISA coverage on Carter Page, was based on information Steele obtained from a source network. In particular, Steele heavily relied on the information he obtained from an individual identified in the Inspector General’s FISA Report as the ‘Primary Sub-source.’ The FBI identified and interviewed the Primary Sub-source at least three times during the course of the Carter Page FISA investigation, including in January, March, and May of 2017.”

“During these interviews, the Primary Sub-source substantially undercut Steele’s election reporting, calling into question the accuracy and reliability of any of Steele’s reports. The FBI continued to seek renewals for FISA coverage on Carter Page and never informed the Foreign Intelligence Surveillance Court of the credibility issues identified by the FBI’s interviews of the Primary Sub-source.”

Graham seems to be on to something big here.

DOJ Inspector General Michael Horowitz found flaws in the FBI’s investigation, and newly declassified footnotes show the bureau was aware Steele’s dossier might have been compromised by Russian disinformation.

Last month, it was reported that Steele — a former British spy who authored the infamous dossier that kicked off the Trump-Russia investigation — is refusing to cooperate with U.S. Attorney John Durham’s investigation into the origins of the Russia investigation.

Numerous questions remain unanswered about how Steele collected information for his dossier, which is still unverified.

From late 2015 to early 2016, Fusion GPS hired Steele to compile the dossier.

As the 2016 presidential election was ramping up, Hillary Clinton and the Democratic National Committee paid Fusion GPS millions of dollars to help fund Steele’s anti-Trump operation.

The FBI and the Department of Justice used the Clinton-DNC funded dossier to help launch the Russia investigation against Trump in mid-2016.

This also helped paved the way for the appointment of Robert Mueller as the special counsel.

After more than two years of investigating, Mueller ended his Russia probe declaring there was no evidence of collusion or obstruction of justice.

Now, Graham seems poised to dig deeper and hold those accountable for kicking off the entire witch hunt.