Where this comes from
The same memos went to Humphrey, Muskie, Ted Kennedy and Scoop Jackson. His biographer calls it an older version of cut and paste. In 1975 he stopped hedging and settled on one candidate. It is in the record because he kept the carbon copies and gave them to a library.
Both open a compose window prefilled with this card’s own sentence and a link to the yard, so the reader lands in the diagram rather than on a page about a card.