on february 10, 2016, carrier air conditioner, a division of united technologies, announced that it was moving its manufacturing operations to mexico. a cellphone video shot by an employee and posted on youtube rapidly went viral, making this particular plant closing a national news story, after which donald trump made the company's decision to move to mexico, "a centerpiece of his stump speeches attacking free trade." the move played a role in the donald trump presidential campaign, 2016, as a symbol of his protectionist position on international trade, and a lesser role in the 2016 presidential campaign of bernie sanders.