As of Monday morning union workers at Volvo Group-owned Mack Trucks went on strike after rejecting a tentative agreement. About 73% of workers voted against the proposed five-year contract deal covering workers in Pennsylvania, Florida and Maryland, according to United Auto Workers President Shawn Fain. The rejected deal had included a 19% pay increase, a $3500 signing bonus, improved retirement benefits and additional vacation. While UAW President Fain praised the members for “holding out for a better deal,” Mack President Stephen Roy said he was “surprised and disappointed” that UAW had chosen to strike and called it unnecessary. Mack remains confident an agreement can be reached, expressing its commitment to the bargaining process.