Senators Chuck Grassley (R-IA) and Lindsey Graham (R-SC) are pressing the FBI for an unredacted document detailing an alleged bribery scheme involving President Biden and a foreign national. The document, an FD-1023 form, reportedly summarizes interviews with a confidential source who described conversations with a Burisma Holdings executive about payments made to the Bidens in exchange for influence over U.S. policy. The senators have criticized the FBI's lack of transparency and are demanding a full account of the investigative steps taken.

Sen. Chuck Grassley is seeking an unredacted version of the FBI document. (OLIVIER DOULIERY/AFP via Getty Images)

The senators' request follows House Oversight Committee Chairman James Comer's subpoena for the document, which the FBI initially refused to comply with. The FBI eventually allowed lawmakers to review a redacted version, but Grassley and Graham insist on seeing the full document to conduct proper oversight. The FD-1023 form reportedly alleges that Burisma paid $5 million each to Joe and Hunter Biden to address issues including an investigation by Ukrainian prosecutor Viktor Shokin. The confidential source claims the Burisma executive boasted about the difficulty of tracing the payments due to their complexity. The document reportedly refers to "the Big Guy," believed to be President Biden.

Sen. Lindsey Graham joined Sen. Grassley in demanding the unredacted document. (AP Photo/Alex Brandon, File)

The FBI has defended its reluctance to release the unredacted document, citing the need to protect sources and methods. However, the senators argue that the allegations are serious enough to warrant full transparency. The alleged bribery scheme coincides with then-Vice President Biden's pressure on Ukraine to fire Shokin, who was investigating Burisma at the time Hunter Biden held a lucrative position on its board.

Rep. James Comer previously subpoenaed the document. (AP Photo/J. Scott Applewhite)

President Biden. (Alex Wong/Getty Images)

Hunter Biden. (REUTERS/Elizabeth Frantz)

President Biden with his son, Hunter Biden. (NICHOLAS KAMM/AFP via Getty Images)

Separately, Hunter Biden recently agreed to plead guilty to two misdemeanor tax charges and enter a pretrial diversion agreement for a firearm charge. This agreement is part of a separate, ongoing investigation. The White House maintains that President Biden was not involved in his son's business dealings.