Jeff Sessions didn’t “lie” because he wasn’t intent on misleading. He was just Wrong. Hillary Clinton DID intend to conceal her emails from FOIA requests and “intent” isn’t required to prove Gross Negligence or IRRESPONSIBLE MEGA-STUPIDITY. She had been instructed and told how to avoid compromising Top Secret Information.
Furthermore, Jeff Sessions didn’t “Change his testimony” he clarified it. He stated what he remembered based on the best of his recollection. At the time the presence of a Russian at a diplomatic function was unremarkable and unimportant, so he didn’t remember it. As he was reminded he amended his narrative. He wasn’t aware that at the time he had accidentally been in the presence of people that were being surveilled by the Illegal Deep State Cabal that the Hussein/Hillary Regime had created.
The tweet below is there in order so that you can check the time stamp. I posted that photoshop because of my predictions based on my psychological models and my psychological profiling of people through linguistics.