Domestic policy adviser Susan Rice is stepping down from her post.

Rice, who also served as the U.S. ambassador to the United Nations, helped the Biden administration with expanding the Affordable Care Act.

“As the only person to serve as both National Security Advisor and Domestic Policy Advisor, Susan’s record of public service makes history,” President Joe Biden said in a statement Monday. “But what sets her apart as a leader and colleague is the seriousness with which she takes her role and the urgency and tenacity she brings, her bias towards action and results, and the integrity, humility and humor with which she does this work. I thank Susan for her service, her counsel and her friendship. I will miss her.”