In 2018, teachers in West Virginia made headlines for defying their union and going on a "wildcat," or not union-supported, strike. The NLRA deems wildcat strikes illegal, and employers can fire workers who engage in them.
Teachers went on strike over pay, as West Virginia ranks as one of the worst-paying states for educators. The strike inspired teachers in states like Oklahoma and Arizona to start a nationwide movement to raise wages.
Not only was the illegal nature of the West Virginia teachers strike shocking, but these teachers also successfully organized in a "right to work" state, one that doesn't require workers to pay union dues, thereby weakening organized labor's financial power.
The Trump administration supports "right-to-work" laws and has made an effort to kill unions, but the West Virginia teacher strike showed successful bargaining can still occur without unions.