They should make it so if the president knowingly lies to the public they're charged with perjury

[Jean-Jacques Roussea]

Just thinking about the new constitutional amendments limiting the powers of the president we're going to need soon

[philosslayer]

1. Every President has knowingly lied to the public

In either large or small ways.

[Cicada]

2. Opposing party would convict when party changed

This would just criminalize politics. If justice were blind it might work. But in politics justice is not blind.

[loyalsister]

3. There is no way to define it in the context of public interactions

Would omission, obfuscating, deflecting count as lies? It's part of the game to duck questions and offer what are essentially dishonest responses. The lines are far too blurred to apply perjury outside of a court setting.