Mary Helen Wimberly is a partner with Axinn, Veltrop & Harkrider LLP in Washington, DC. She has over 15 years of experience as a litigator, counselor, and policy and strategic advisor, working in private practice and all three branches of the federal government. She draws on her extensive public-sector background to bring insightful and practical guidance to clients facing complex regulatory and enforcement challenges. As an Associate Deputy Attorney General, Mary Helen served in a senior leadership role in the Office of the Deputy Attorney General, which oversees the operations of the entire U.S. Department of Justice (DOJ). Her work covered the breadth of the Division’s oversight: merger challenges, civil conduct cases, cartel prosecutions, and formation of competition policy. In private practice, Mary Helen has built a reputation as a formidable appellate advocate for market-leading companies and has argued significant appellate cases in state and federal courts, including in the D.C., Second, Sixth, Seventh, Ninth, and Eleventh Circuits.