The former governor of Virginia and his wife have been charged with illegally accepting lavish gifts from a businessman while he was in office.
Bob McDonnell, a Republican who left office this month, and his wife Maureen face 14 counts of accepting items valued at $135,000 (£81,955) in total.
Prosecutors say they accepted the gifts from a businessman who sought political favours. The couple deny wrongdoing.
If convicted, they face decades in prison and fines in excess of $1m.
Mr McDonnell denied the allegations during a news conference last Tuesday with his wife by his side.
"I will use every available resource and advocate that I have for as long as it takes to fight and prevail against these false allegations," he said.
According to the US attorney for the Eastern District of Virginia, the couple accepted trips, loans and gifts from Star Scientific Chief Executive Officer Jonnie Williams in exchange for promoting the company's dietary supplement, called Anatabloc.
