Brian is chairman and CEO of Stand Together and president of the Charles Koch Foundation. Previously, he served as executive director and chief operating officer of the Mercatus Center at George Mason University. Brian was named to the 2021 TIME100 Next list, featuring leaders who are shaping the future of their fields. He is co-author with Charles Koch of Believe in People: Bottom-Up Solutions for a Top-Down World. Brian serves on several boards, including the Mercatus Center, Institute for Humane Studies, Reason Foundation, and the Just Trust.