U.S. President Donald Trump directed his health department on Tuesday to work with Congress on revamping a law that allows Medicare to negotiate prescription drug prices, seeking to introduce a change the pharmaceutical industry has lobbied for.

In his first major action on health care costs this term, President Donald Trump issued a multi-part executive order on Tuesday aimed at lowering drug prices and reducing costs for Medicare. The move comes as his administration seeks to impose tariffs on pharmaceutical imports that many experts have said could lead to drug shortages and price hikes.

The president said the order would lower prescription drug prices for many Americans, including people on Medicare.