Senate Judiciary Committee Chairman Sen. Dick Durbin (D-IL) promised on Thursday to thoroughly examine an IRS whistleblower's allegations of a cover-up in the ongoing criminal investigation into Hunter Biden, the president's son.

Durbin stated during a hearing on judicial nominees, “We take all whistleblower statements seriously, as we should. Some turn out to be very important and some not.” He continued, “But we take them all seriously at the outset and look at them closely.”

Sen. Lindsey Graham (R-SC), the panel's top Republican, urged a “bipartisan” approach to investigating the claims made by the unidentified IRS employee, who informed key congressional committee leaders on Wednesday that they have information on “preferential treatment” and false testimony to Congress concerning the case.

Graham said, “I hope the committee will take this seriously,” and added, “I don’t know where this leads, but I do know we need to embrace the idea that we’re gonna look long and hard at any accusation that investigation was compromised. And I hope we can do that in a bipartisan fashion.”

The White House has refrained from commenting on this potentially explosive development in the criminal and congressional inquiries into the first family's foreign business dealings.

White House press secretary Karine Jean-Pierre told CNN, “We’ve been very clear to not comment on anything related to any type of investigation.”

Administration spokesman Ian Sams stated in an email to The Post, “President Biden has made clear that this matter would be handled independently by the Justice Department, under the leadership of a US attorney appointed by former President [Donald] Trump, free from any political interference by the White House.”

The whistleblower's attorney informed Congress on Wednesday that their client wishes to expose “preferential treatment” in the criminal investigation and false testimony to Congress by a “senior political appointee.”

The attorney, Mark Lytle, wrote, “The protected disclosures: (1) contradict sworn testimony to Congress by a senior political appointee, (2) involve failure to mitigate clear conflicts of interest in the ultimate disposition of the case, and (3) detail examples of preferential treatment and politics improperly infecting decisions and protocols that would normally be followed by career law enforcement professionals in similar circumstances if the subject were not politically connected.”

Hunter Biden, 53, is not named in the letter, but congressional sources confirmed that the complaint pertains to the president's son, who reportedly borrowed around $2 million last year to pay off a tax bill on income earned overseas.