He specifically cited the case of a union endorsing Reagan. 

https://en.m.wikipedia.org/wiki/Professional_Air_Traffic_Controllers_Organization_(1968)#:~:text=In%20the%201980%20presidential%20election,Republican%20Party%20candidate%20Ronald%20Reagan.


"In the 1980 presidential election, PATCO (along with the Teamsters and the Air Line Pilots Association) refused to back President Jimmy Carter, instead endorsing Republican Party candidate Ronald Reagan."

"After PATCO disobeyed a federal court injunction ordering an end to the strike and return to work, a federal judge found union leaders including PATCO President Robert Poli to be in contempt of court, and the union was ordered to pay a $100,000 fine, and certain named members were ordered to pay a $1,000 fine[12] for each day its members were on strike. At the same time, Transportation Secretary Drew Lewis organized for replacements and started contingency plans. By prioritizing and cutting flights severely (about 7,000), and even adopting methods of air traffic management that PATCO had previously lobbied for, the government was initially able to have 50% of flights available.[4]

On August 5, following the PATCO workers' refusal to return to work, the Reagan administration fired the 11,345 striking air traffic controllers who had ignored the order,[13][14] and banned them from federal service for life. In the wake of the strike and mass firings, the FAA was faced with the difficult task of hiring and training enough controllers to replace those that had been fired. Under normal conditions, it took three years to train new controllers.[1][page needed] Until replacements could be trained, the vacant positions were temporarily filled with a mix of non-participating controllers, supervisors, staff personnel, some non-rated personnel, military controllers, and controllers transferred temporarily from other facilities. PATCO was decertified by the Federal Labor Relations Authority on October 22, 1981. The decision was appealed but to no avail,[15] and attempts to use the courts to reverse the firings proved fruitless.[16]

The FAA had initially claimed that staffing levels would be restored within two years; however, it took closer to 10 years before the overall staffing levels returned to normal.[1]

Some former striking controllers were allowed to reapply after 1986 and were rehired; they and their replacements are now represented by the National Air Traffic Controllers Association, which was certified on June 19, 1987, and had no connection with PATCO. The civil service ban on the remaining strike participants was lifted by President Bill Clinton on August 12, 1993.[17] Nevertheless, by 2006 only 850 PATCO strikers had been rehired by the FAA.[8]"


I imagine Reagan was laughing so hard at the union when they endorsed him. It's like if a Jewish group had endorsed Hitler.
user
He's a tool, and he will be LAMF'd accordingly if Trump wins.

He thinks he's being one of the good white men who will be safe in a fascist dictatorship, you see, so he can play it both ways: nope, you gotta be a Republican rich white man to prosper in this, not any other white man.
assistant
He's the Diamond and Silk of American Labor.
user
Yup, embarrassing man: HawleyMO will be on point in his labor union being ended and destroyed, that's all.

The man is desperately trying to play it both sides, hoping he comes out on top: my dude, fascists don't want labor unions.
assistant