Ford Motor Company will cancel plans for a 1.6-billion-dollar plant in San Luis Potosi, Mexico, and will invest 700 million dollars in its Flat Rock, Michigan, plant, the company announced Tuesday. The move comes just hours after US president-elect Donald Trump criticized General Motors, a competitor to Ford and the country's largest car manufacturer, via Twitter because of the company's imports from Mexico. Trump, who called for an "America first" policy throughout his election campaign, has long criticized US firms for producing products abroad at the expense of jobs for US workers.