President Donald Trump on Monday nominated Dr. Scott Gottlieb to lead the Food and Drug Administration (FDA).

Gottlieb, a 44-year-old physician, is a fellow at the conservative think tank American Enterprise Institute, researching health policy, regulation and public health. He served at the FDA during the George W. Bush administration in several senior positions, including deputy commissioner.

The FDA is currently being led by acting commissioner Stephen Ostroff, MD.

Gottlieb’s nomination is supported by the pharmaceutical industry. It will need to be approved by the U.S. Senate.