Joseph Knecht

IT's ALL Really Simple! Today's constructor  Bryant Shain  rejoins us today  after a long absence (recapped by a beloved reviewer)  to treat us to a relatively uncommon vertical theme.  He gives us these 3 down clues and a down reveal indicated by asterisks.  If you don't see the embedded words in each of the themers (I didn't)  IT 's ALL  given away by the reveal ... 3D. *Party boss:  POLITICAL LEADER .  As we are in the thick of an election year, and as the Corner doesn't generally do politics, I decided to go to a great General who later became a great President, whom I trust most will agree was one of the best political leaders in American history --  Dwight D. Eisenhower  (October 14, 1890 – March 28, 1969). President Dwight D. Eisenhower 22D. *"Let's go already!":  QUIT STALLING .  Sorry, but I've got more important clues to explain right now ... 😀 9D. *Runs out of free content, in a way:  HITS A PAYWALL .  In 1989 computer scientist  T