Former Lewis and Roca Partner
Former Senior Litigation Counsel for the State of Arizona
David Weinzweig has practiced law in Arizona for 20 years, primarily as a Partner with Lewis and Roca LLP, where he led the antitrust and trade regulation practice group and developed broad experience in complex and routine litigation.
He served as Senior Litigation Counsel to the Arizona Attorney General from 2012 to 2017, entrusted to defend the State of Arizona in its highest-profile complex and constitutional litigation and appeals, including a number of class actions.
David defended facial constitutional challenges to state election laws, education laws, free speech laws, criminal laws and capital punishment methods, tax laws, abortion laws, government spending laws, and more. His record of success was unmatched. His work led to precedent-setting opinions in areas ranging from forfeiture to campaign finance reform. He also served on the Attorney General Opinion Committee, which authors published legal opinions in response to formal requests from state and county officials.
David has been recognized in Best Lawyers in America ® and received an AV rating (Preeminent and Outstanding) from Martindale-Hubbell.
David is passionate about legal writing and the art of persuasion. He teaches both subjects to attorneys across the United States in his popular and entertaining Learning Legal Writing from the Luminaries seminar. In his free time, David reads common law decisions authored by iconic judges and exemplary briefs authored by persuasive practitioners, all to improve his craft.
He has made meaningful contributions on important rules and practice committees charged with shaping and reshaping the landscape of state and federal litigation, including the Arizona Supreme Court’s Civil Justice Reform Committee and the Local Rules of Practice Advisory Committee of the U.S. District Court for the District of Arizona.
As a community activist, David helped build and chaired a prominent awards program that recognizes Arizona attorneys for exceptional contributions in public and community service. Under his stewardship, the Judge Learned Hand Program drew huge crowds and notable speakers.