Opposition among Southern Republicans has intensified in recent days.
Beyond Chattanooga, the UAW has secured a vote to organize the Mercedes-Benz factory in Tuscaloosa County, Alabama.
And it is making progress in its bid to organize other facilities, including Tesla, Hyundai and Toyota sites.
Between the lines: Tennessee Gov. Bill Lee — along with the governors of Alabama, Georgia, Mississippi, South Carolina and Texas — issued a statement on Tuesday bashing the UAW campaign to organize plants in their states.
The effort is "driven by misinformation and scare tactics," and "we do not need to pay a third party to tell us who can pick up a box or flip a switch," the governors said.