Daniel W. Nelson practices in the Litigation Department as co-chair of the Environmental Litigation and Mass Tort Practice Group, and he is a member of the Class Action and Complex Litigation, Antitrust and Trade Regulation, and Appellate and Constitutional Law Practice Groups.

Mr. Nelson has a national complex litigation practice. He has served as the lead defense counsel for clients in the courts of more than 30 states, and he has defended more than 200 class action lawsuits, including as lead trial counsel in securing a defense verdict in a certified class action jury trial. He has represented clients at the trial and appellate levels in cases that span a wide range of areas, with a particular focus on environmental and mass tort litigation, complex business litigation, antitrust litigation, and class action litigation.