How is the comma used as an interrupter in this sentence?
if this car, an old junkheap, ever starts, we will go!
appositive
direct address
parenthetical expression
summary
two adjectives before a noun

samuel gompers was an extremely important person in the american labor movement, being him an employee all his life he devoted himself to fight for the rights of his pairs, he believed they all had the right to have better thing and that they all were working for them but the factory workers were greedy, ambitions and socialist people for him who he didn't have a good concept of.

he gave so many speeches and led so many strikes and protest to fight for equality which he considered employers didn't want to accept, so he had an absolutely negative opinion of them.