It was "Blood Feud" (1983) with Cotter Smith playing RFK. Blake was much better as Hoffa and carried the movie. I'll never forget the line that Blake uttered after learning Kennedy was shot in Dallas. A good movie that was a two-parter.There was a TV movie I recall where Blake played Jimmy Hoffa, called something like Hoffa vs Kennedy. My recollection is that Blake did a great job as Hoffa. Can’t recall who played Robert Kennedy.