Here’s a funny thing we don’t know from the Constitution:
Whether or not a president can be indicted before being impeached.
The first thing you learn from a google search, though: This question has not be consistently asked since 1998. lol
The second thing you learn: Many people erroneously claim that the question is settled and that the President holds absolute immunity until he has been impeached.
The third thing you learn: A lot about whether you can sue a president. Turns out, the Supreme Court has held that you can never sue them personally in civil court for actions they took professionally during office (Nixon v. Fitzgerald); however, you can sue the president for civil actions taken before their term of office (Clinton v. Jones). I’m not sure whether there is any precedent regarding whether you can sue a president in civil court for personal actions taken during his term, however.