Story time. I was sitting at dinner with most of the Exec team of our MEC at the time and the then ALPA President - he always called me "you poor bastard" because of my job as comm chair, but that isn't important to this story.
Anyhoo, that day the current President of these United States announced the appointment of the current NMB. The composition would be, two from the (R) side and one from the (D) side of the political spectrum. "Well, that's that. We are *expletive deleted*. We are going to spin it this way; that the former (D) member will help 'guide' the new ones with her experience, but don't expect any air carrier to even think about getting released." Now, even though that is in quotes, don't quote me on it. (Or our former Union President) It was almost 4 years ago and, like all memories, this is my 'emotional memory' of the event and how I have spun the story in many retellings since that day.
The next day at our "rally" when he spoke, I remember hearing the same spin from the night before.
When the NMB was appointed that's when I knew that the nuclear option was off the table. That it would never be allowed to go that far in any negotiation. That changed how negotiations would play out across the industry during the last 4 years. Because, even though the NMB is 'neutral' on paper, it isn't.
No one really knows how the game is played, the art of the trade, how the sausage gets made, we just assume that it happens. And in this case, I was in the room where it happened.
But, the math is clear, the (R) side typically favors management and the (D) side favors labor. Even for middle/upper-middle class professionals (labor) such as us. It's a weird line. And it's illustrated very well in the formal ALPA history (Flying the Line) where in the 1st chapter it says: (paraphrasing again) "Only unionized group to show up to a picket in a Cadillac."