When President-Elect Joe Biden takes office, making changes to the U.S. health care system through the executive branch will require painstaking work.

WILMINGTON, DELAWARE – JANUARY 07: U.S. President-elect Joe Biden delivers remarks before announcing his choices for attorney general and other leaders of the Justice Department at The Queen theater January 07, 2021 in Wilmington, Delaware. Biden nominated Judge Merrick Garland to be attorney general, Lisa Monaco to be deputy attorney general, Vanita Gupta to be associate attorney general, and Kristen Clarke to be assistant attorney general for the Civil Rights Division. (Photo by Chip Somodevilla/Getty Images)