Federal authorities with the U.S. attorney's office in Delaware, led by U.S. Attorney David Weiss, a Trump-era appointee, opened their investigation into Hunter Biden in 2018. The investigation spilled into public view in December of 2020, shortly after Joe Biden secured the presidency, when Hunter Biden confirmed the probe into his "tax affairs."
Prosecutors have since examined a range of potential crimes as part of their investigation and brought several witnesses before a federal grand jury empaneled in Wilmington, Delaware.
The impetus for the probe and investigators' primary focus was whether Hunter Biden paid adequate taxes on millions of dollars of his income. The younger Biden paid off at least one significant tax liability of nearly $2 million in 2021 with the help of a Los Angeles-based entertainment lawyer name Kevin Morris, ABC News has reported.
Beyond his taxes, investigators scrutinized a gun application form signed by Hunter Biden in 2018. On the form, he checked a box indicating he was not an "unlawful user" of drugs, despite later acknowledging that he was indeed addicted to crack cocaine around that time, ABC News has reported.
A Yale-trained lawyer, Hunter Biden repeatedly said he was cooperating with investigators and remained "100% certain" that he would be cleared of any wrongdoing. Joe Biden has said he's never spoken to his son about his foreign business and recently said Hunter Biden "has done nothing wrong." There are no indications that the federal investigation involved the president in any way.
The White House has repeatedly sought to distance the president from the probe, and Attorney General Merrick Garland assured Congress that there would not be "interference of any political or improper kind."