Pres­i­dent Don­ald Trump is ex­pect­ed to nom­i­nate Hei­di Over­ton to be the next FDA com­mis­sion­er, ac­cord­ing to a source fa­mil­iar with the de­ci­sion, set­ting a new chap­ter for the drug agency three months af­ter ex-com­mis­sion­er Mar­ty Makary’s ouster...