Lawyers didn't seriously get involved in the Watergate stories until quite late, when we realized we were on to something.
Watergate provides a model case study of the interaction and powers of each of the branches of government. It also is a morality play with a sad and dramatic ending.
It would seem that the Watergate story from beginning to end could be used as a primer on the American political system.
Way before Watergate, senior administration officials hid behind anonymity.