He promised not to run as a condition of Nixon’s pardon. The mob was probably told it would not be a good thing for Hoffa to be seen as lying to Nixon. As funny as that sounds.
Thanks, I did not know that. I do remember back then Labor was Pro-Nixon especially the Teamsters, and Pro-American, and do you remember the “Hard Hat Rebellion”? when construction workers beeotch slapped ( that is putting it mildly ) hippie maggots because they had had enough?...