Hunter Biden’s defense attorney has called Naomi Biden to the stand in his federal gun trial. She is Hunter Biden’s daughter. Abbe Lowell began calling witnesses Friday after federal prosecutors wrapped up their gun case. They say the president’s son lied on a mandatory gun-purchase form when he said he was not illegally using or addicted to drugs. Hunter Biden has pleaded not guilty Lowell has said he did not believe he had a serious drug problem at the time of the gun purchase and that there was no attempt to deceive anyone.