@PDFlynn You're missing the important part, though. It's not about the justice system: we don't need to lock people up for lies. Particularly politicians.
The question you should be asking is, why don't people care? Why does the general public just not care about Trump lying? They know he's lying, and they don't care, and why is that?
It's because the institution that is government has lost so much of the faith of the general population that no one cares, and how did that come to be? How did the government fail the people so badly that they don't even care if politicians are overtly lying?
So this isn't about the justice system. This is about the interaction between the government and its people. This is about a government that failed so badly that the people just don't care anymore.
This is the people responding to a failing government.
You have to approach it from that direction to try to figure out solutions.