A letter from Johnson to DOJ Inspector General Michael Horowitz asking for an investigation reads in part: "After the FBI obtained the Hunter Biden laptop from the Wilmington, Del. computer shop, these whistleblowers stated that local FBI leadership told employees, "you will not look at that Hunter Biden laptop' and that the FBI is 'not going to change the outcome of the election again," according to the Daily Mail, which has obtained the letter.

"While I understand your hesitation to investigate a matter that may be related to an ongoing investigation, it is clear to me based on numerous credible whistleblower disclosures that the FBI cannot be trusted with the handling of Hunter Biden's laptop," the letter continues. "I hope you understand that the longer your office stands on the sidelines and delays investigating the FBI's actions, the harder it will be for you to uncover the truth and hold individuals accountable for wrongdoing"

Horowitz previously told Johnson in Feb 2021 that he would not investigate the FBI's handling of the laptop in order to avoid interfering with a DOJ investigation into Hunter's tax matters.