I live in a one party state. I recommend it 110% if you do as well. I was discharged due to filing grievances and simply being not liked. They hired deputies to guard building because I made threats. Steward helped in the entire process, he and alternate steward wrote statements against me. They were HAPPY I was gone. It was a good plan and helluva effort. BUT.....they had to hire me back with full backpay due to my recording of the meeting in question.
No one can protect you except you, when push comes to shove. If it’s a two party state, take detailed notes, while having a TRUSTED witness doing the same. If your steward is POS call local and inform them you are using someone else.