In his latest effort to lower drug costs, President Donald Trump unveiled Friday "Most Favored Nation" pricing deals with nine more pharmaceutical companies. The president also announced he would call a meeting next week or early January with health insurers to push them to lower their premiums. The move comes as Trump and Republicans are scrambling to deal with steeply rising health insurance costs, particularly on the Affordable Care Act exchanges as enhanced premium subsidies are set to expire at year's end.