NB, I'm not saying don't expose his lies. I'm saying he doesn't care and it won't stop him from lying or make him admit that he's lying. And frankly, at this point? If you don't know that he's a lying liar who lies about simply everything, I'm not sure you can be trusted. I guess everyone has their road to Damascus, but come on, it's late in the day, we've covered all this already.
Everything he says is a lie, even the stuff which is correct. Just accept that and move on to the next step in the process because all this waffling around at the first step? It's not confidence-building.