Dr. Kevin C. O’Connor did other, unspoken, favors for the Bidens. For instance, emails and other records reveal he helped Biden’s younger brother James, known as “Jimmy,” carry out one of his questionable business schemes.

In 2017, Jimmy Biden enlisted O’Connor to help get the U.S. Department of Veterans Affairs (VA) to refer PTSD patients to private hospitals run by Americore, which, records show, had hired Jimmy based on his access to his powerful brother. He had no experience in the medical industry. Jimmy and the doctor met over lunch in Alexandria, Virginia, to discuss the potentially lucrative plan, which centered on federally subsidized contracts, according to a congressional deposition of Jimmy taken this year. “I saw that as a huge market because the VA was heavily populated by former veterans with this disease [PTSD] and they weren’t getting any help,” Jimmy pitched to O’Connor, a retired U.S. Army colonel, according to his testimony. And “because these rural hospitals were very large [and] there was a lot of empty space [to treat the VA patients].”

O’Connor, in turn, introduced Jimmy to a team of people involved in treating PTSD on military bases and even helped pitch hospitals on “our vision.” For example, Jimmy and Biden’s doctor met with the director of a Pennsylvania hospital that Americore was acquiring. Following their meeting, O’Connor emailed the hospital administrator: “You and your team clearly share our vision. And I look forward to seeing you again in coming months.” Jimmy’s wife Sara, their son Jamie, and Hunter Biden were also involved in the deal, which soon soured when Americore collapsed, forcing the Pennsylvania hospital into bankruptcy. The FBI raided the hospital as part of a probe into unpaid bills and neglected patients.

Despite the failure, Jimmy walked away with $600,000 from Americore, $200,000 of which ended up in Joe Biden’s personal bank account, subpoenaed bank records reveal.

Comer explained that the committee is “concerned your medical assessments [of President Biden] have been influenced by your private business endeavors with the Biden family.”

While it’s not clear if O’Connor also received Americore-related funds, Jimmy Biden’s attorneys insist the doctor was not compensated for his hospital consultations.