that was teamsters president sean o'brien. he was roasted a bit for agreeing to do it, but he delivered a pro-union rant.
I really cant find much fault here. republicans in general and trump in particular dont give a shit about workers, but delivering a pro-union message directly to republican-curious viewers was probably a net positive. besides, support is earned not owed. do better (*fucking sigh*) democrats.
perchance, banana for scale?