Judge Maryellen Noreika, in her initial instructions to jurors, explained how they are to apply the law to the facts of the case for the three criminal counts Hunter Biden faces.

"You must not attach any significance to the fact that the defendant did not testify," she read aloud in the courtroom, after the defense decided not to call Hunter Biden to the stand.

The judge defined "knowingly," the central term by which jurors must determine if Hunter Biden bought the gun at the center of the case "knowing" he was an addict or user of drugs, after he stated on the gun-purchase form that he was not.

Closing arguments are scheduled to begin at 12:05 p.m. ET, after which the judge will give the jury her final instructions and their deliberations will begin.

Closing arguments will begin at about noon ET after Hunter Biden chose not to testify in his federal gun case.

The defense rested without him taking the stand, after which prosecutors presented a brief rebuttal case, then the judge gave the jury their initial instructions.

Following the prosecution's rebuttal case, the judge read the jury their initial instructions.

Court is then expected to break for lunch, with closing arguments currently scheduled for the afternoon.

The judge will then give the jury their final instructions before they begin deliberations.

The government rested its rebuttal case after a brief cross-examination of FBI special agent Erika Jensen, who testified about location and text message data relevant to the case.

Attorneys then gathered for another sidebar conference.

Judge Maryellen Noreika has so far quizzed more than 50 Delaware residents about their fitness to serve as jurors in the first trial of a sitting president's son. And being Delaware -- a small state that Joe Biden represented in the Senate for more than three decades -- nearly all of them had some level of familiarity with Hunter Biden's legal travails.

"I live in Delaware," one prospective juror said. "You can't swing a cat without hearing something."

"Delaware is a small place," another said. "So you hear stuff."

Several jurors said they had heard or read about this trial specifically. Most had only a cursory understanding of the case, but others expressed a detailed accounting of the charges. A few jurors mentioned the ill-fated plea deal that Hunter Biden initially struck with prosecutors last summer.

"At one time there was a deal, and then there wasn't," one man said.

One woman had even read Hunter Biden's memoir, "Beautiful Things," which prosecutors plan to use to help prove their case. She was excused by the judge.

President Joe Biden has emerged repeatedly in questioning, with prospective jurors expressing both positive and negative feelings on his presidency. One woman said she believed that Hunter Biden was facing charges largely because his father is the president.

"I think it was a very strong factor," she said.

Several others have been dismissed for harboring negative views toward the Bidens. Asked for his opinion about the president, one man said, "Not a good one." Another man said, "Negative toward the defendant." Both were excused.

The jury questionnaire also includes several questions about drug and alcohol addiction -- an affliction that many prospective jurors said has personally affected them.

One woman held back tears as she described how her best friend had died of a heroine overdose. Another man said his daughter is a recovering addict.

"Everybody needs a second chance," he said.

Judge Noreika has been pressing ahead, intent on getting a jury seated as soon as possible -- perhaps even by the end of the day.

In addition first lady Jill Biden and Hunter Biden's wife Melissa, his half-sister Ashley Biden attended court during the morning session, and his confidant and financier Kevin Morris is also in attendance.