President Joe Biden hugged his son and spent several minutes with him on the tarmac at Delaware Air National Guard Base, hours after Hunter Biden was convicted in court.

The president spent several minutes with Hunter Biden, his wife Melissa and their infant son Beau on the tarmac.

The infant hugged his grandfather, who took the child's face in his hands and appeared to give him a kiss.

-ABC News' Molly Nagle

A juror in Hunter Biden's gun trial told ABC News that he did not know who Hunter Biden was before the trial started, and that his proximity to power made no difference to the jury.

"Everyone is human and everyone makes mistakes," the juror said. "And those mistakes can have serious consequences -- not just for them, but for everyone else."

The juror -- whose father was killed by gunfire when he was young -- said prosecutors successfully showed that Hunter Biden's drug use around the time of his gun purchase was "too close for me to consider him not a user or addict at that point."

"There's too many patterns that I can see that showed that he was using it when he purchased the gun," the juror said.

A member of the jury in Hunter Biden's gun case told ABC News that "politics never came into play" in deliberations and that "the verdict absolutely was not politically motivated."

The juror said "it wasn't that hard" to reach a verdict, but said the panel of 12 had to overcome a six-six vote on yesterday afternoon when deliberations began.

When jurors returned this morning and deliberated further, he said they determined that prosecutors had met their burden of proof.

"If you're an addict, you're an addict," he said.

The juror said evidence that placed Hunter Biden at a 7/11 convenience store -- a place where he repeatedly said in his memoir and in text messages that he purchased drugs -- days prior to his gun purchase tipped them over the top.

A senior official who has been briefed on the matter tells ABC News that the Secret Service has not started planning for the possibility that Hunter Biden could be sentenced to prison. Those discussions with the Bureau of Prisons will start now.

As the son of a president, Hunter Biden gets Secret Service protection but can opt out of that protection if he wants.

As of now, he continues to have USSS protection and, for as long as his father is president, that would continue, even in prison, unless he waives the privilege.

When sentenced, he could face up to 25 years in prison -- though legal experts believe he will not serve time as a first-time and nonviolent offender.

-ABC News' Josh Margolin

Prosecutor Leo Wise, continuing his closing argument, laid out his case for conviction by telling jurors that the evidence in the case was "ugly" but "necessary" to establish Hunter Biden's drug use during the time in question -- as well as in the months before and after.

"He knew he was using drugs," Wise told the jury, a reference to the standard the jury must reach for conviction -- that Hunter Biden had to "knowingly" lie on the gun-purchase form on which he said he was not addicted to drugs.

"That's what the evidence shows," Wise said.

Wise emphasized repeatedly to the jury that the government is not required to show specifically that Hunter used drugs when he owned the gun from the Oct. 12-23, 2018 -- but rather they must "establish that pattern."

To that end, Wise referenced the text messages spanning back to 2015 in which Hunter Biden appeared to purchase drugs or reference his addiction, as well as the testimony from his ex-wife Kathleen Buhle and ex-girlfriend Hallie Biden, who said they either found his drug paraphernalia, saw him use drugs, or talked to him about it.

Wise also pointed to the testimony of ex-girlfriend Zoe Kestan, who testified she saw Hunter Biden using drugs in late September 2018 -- just two weeks before he bought the gun.

"You can convict on that alone," Wise told the jury.

Wise also referenced Hunter Biden's memoir, "Beautiful Things," saying it was a "searingly painful" but "honest" description of himself and his addiction.

The evidence showed Hunter Biden "habitually used," Wise said.