I don’t mean the actual rules of passing it, I mean what organization, activities and funding are necessary to do so.
The last one passed was in 1992 and it was just about congressional pay. Last one before that was 1971. Is there some kind of play book? It seems to happen so infrequently that it would be hard to study and conditions would vary enough that the last effort wouldn’t be useful as a model.
(“The amendment process is very difficult and time consuming: A proposed amendment must be passed by two-thirds of both houses of Congress, then ratified by the legislatures of three-fourths of the states.” Link)
That would have been Antonin Scalia. He also advocated for lowering the bar to pass amendments.