It has recently been determined by a controversial Supreme Court decision that Section 3 of the 14th Amendment is to be enforced by legislation drafted for the purpose by Congress, and not by the states (and perhaps not by federal courts?), casting some doubt on whether it is "self-executing", with the minority asserting that it is.
This has surprised quite a lot of people, including, arguably, many of the sessions of Congress that were supposed to have been responsible for passing that legislation.
One might want to prevent this sort of surprise from happening again. In particular, one might want to know if there are any other parts of the constitution that one has been relying on being followed but which actually need enforcing legislation to operate.
Would it be possible for someone to file for a declaratory judgement in a federal court of suitable jurisdiction as to the self-executing-ness of all the remaining parts of the Constitution for which it has not been determined? Can constitutional interpretation even be done by anyone other than the Supreme Court?