(The Center Square) – Striking Boeing machinists voted Monday to approve the aerospace company’s most recent contract offer, ending a strike that lasted nearly two months. The contract was approved by 59% of those who cast ballots. Monday marked day 52 of the Boeing strike for 33,000 machinists. The International Association of Machinists and Aerospace Workers District 751 President Jon Holden has urged a yes vote and warned workers that if they vote to reject the deal, then Boeing’s next offer won’t be as generous. “This is a victory, we can hold our heads high,” Holden said Monday night in a…