Oh yes, many union members vote Republican as I did years ago before retiring. Of course at that time we weren’t padding the Dems pockets with high union dues and that’s what’s so great about the right to work states now.
I was a short-time member of the Teamsters, and one time we were in a (forced) meeting for our local, I had a couple of conversations while outside on a smoke break. Funny, that everyone outside smoking confessed they were NRA and GOP members. You’ll ALWAYS know who the GOP members are when they never wear those stupid union jackets and shirts.