Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Why Congress Wants to Protect Drug Supply Chains from China Lin Yang WASHINGTON - In early May, U.S. President Donald Trump was asked during a Fox Newsvirtualtownhall when the country would no longer be dependent on foreign pharmaceutical manufacturers for 94%of antibiotics used in this country. "I think we will have it done within two years," Trump answered. "Everybody makes our drugs, except us." .