Since it first came before the Supreme Court... abortion... has been about the Constitution. Whom does it protect? How do we decide..? - Laurence Tribe

[T]he Constitution is an intentionally incomplete, often deliberately indeterminate structure for the participatory evolution of political ideals and government practices.

[A]ttempting to organize and give structure to the study of legal silence has been a primary purpose of much of what I have written and taught over the past half-century.

Impeachment requires good judgment amid uncertainty, not a preprinted checklist of relevant considerations...