testifying in very tough cross examination by the prosecution giving details that might hurt her father's case seemed to really change the dynamic. and really, the entire trial is going on with this family confronting a very difficult truth, which is if president biden had not run for office, if he was not running for re-election, would this whole ordeal have been spared of them, and then to see president biden have to answer that question, the power that he has as president to potentially pardon his son, to lift this cloud from him is one he's choosing not to take because of the respect for rule of the law and the concern potentially about the politics as well. a difficult day for the family in what has been a long and difficult trial here. >> catherine, one big unanswered question, and it usually does wait until the last minute, but that is will hunter biden take the stand in his own defense? what goes into making that decision? >> if they prep him, and he doesn't do well when they're cross examining him, it's very rare. there's really no good that comes when defendants testify.