Hunter Biden's federal gun trial enters second week as testimony continues

The transcript discusses a trial involving Hunter Biden, where the prosecution aims to prove he lied on a gun purchase form by denying drug use. The defense counters by stating he was in rehab and not using drugs at the time. The defense may call another witness, and it's uncertain if the prosecution will call rebuttal witnesses.

What is unclear about the prosecutors' actions after the defense witnesses?

When did Hunter Biden allegedly purchase the gun in question?