An admittedly nervous Naomi Biden, the daughter of Hunter Biden, testified Friday in her father's gun trial.

During the fifth day of the federal Delaware trial, the 31-year-old granddaughter of President Joe Biden was questioned about the truck where Hunter's gun was found, which she had borrowed the same month he had bought a firearm after allegedly lying on federal documents about his drug use.

As Naomi Biden left the courtroom Friday, she gave her father a brief hug and appeared to wipe away tears, before donning dark sunglasses and leaving the building.

She appeared on the fifth day of her father's trial for felony charges related to a 2018 gun purchase. Prosecutors argue that he lied on federal documents about his drug use, which would have barred him from legally obtaining a firearm. If convicted, he could face up to 25 years in prison. The trial, expected to last one to two weeks, delves deeply into whether Biden's drug use influenced his ability to lawfully purchase the firearm.