Katie Keith, J.D., M.P.H., is an associate research professor at Georgetown University's Center on Health Insurance Reforms and teaches courses on the Affordable Care Act (ACA) and LGBT health law and policy at Georgetown University Law Center. She specializes in ACA implementation and provides "Following the ACA" rapid response analysis for Health Affairs. She is an appointed consumer representative to the National Association of Insurance Commissioners and maintains an active consulting practice, where she advises nonprofits and foundations on health care issues. Ms. Keith received her law degree from Georgetown University Law Center in Washington, DC and holds a Master's in Public Health from Johns Hopkins University Bloomberg School of Public Health in Baltimore, Maryland. Joel McElvain, J.D., is a partner in the health care practice group of King & Spalding LLP. He previously served as an Assistant Director of the Federal Programs Branch at the U.S. Department of Justice, where he supervised the defense of litigation involving the Department of Health and Human Services. Mr. McElvain participated in the government's defense of numerous cases challenging the constitutionality or implementation of the Affordable Care Act, including National Federation of Independent Business v. Sebelius, 567 U.S. 519 (2012), and King v. Burwell, 135 S. Ct. 2480 (2015). Mr. McElvain received his law degree from Harvard Law School in Cambridge, Massachusetts.