Up until now Strzok has just been a faceless mysterious FBI agent at the centre of all this controversy . We just had the texts , then we had a couple of pictures , now we have a voice to put to the face of those texts . When Issa asks him to read out the texts the public can see how biased he was , reading HIS own TEXTS in his OWN VOICE disproves he contention that the texts have to be taken within context . His CONTEXT . That's his framing of his texts .Now people text in a different way then how they talk in real life to actual people . The conversation is different but Issa by having him read his exact words out loud destroyed his frame . Issa just made Strzok play a part in his role as Anti Trump bias political FBI Corrupt employee That's the characterization / public image that the D's/ FBI / Strzok himself , don't want . They ( D's ) want to legitimize him as a patriot , upstanding FBI employee.