In terms of membership, the UAW took a hit during the Great Recession. Looking just at the 21st century, membership peaked at 700,000 in 2001 and continued on a downward trajectory from there, hitting its lowest point in 2009.
It rose a bit in the years after and has held steady since, hovering between 350,000 and 400,000.
"This is not to say that the UAW has lost half of its leverage," Ted Morgan, a partner with Plante Moran, said during a webinar hosted by the Association for Rubber Products Manufacturers. "They still have a ton of leverage."
Look no further than this strike—and the graphic below—for proof of that.
"What this (graphic) does kind of highlight," Morgan said, "is the impact that a fairly small percentage of the work force associated with building cars and trucks is impacting the whole industry, including everyone on this call that makes any automotive parts."