Professor of Law, University of Wyoming College of Law
George Mocsary is an expert in corporate and small-business law, and the law of firearms.
Currently, he is Professor of Law, Founder & Director of Firearms Research Center, and Director of the Business Planning Practicum and at the University of Wyoming College of Law.
Professor Mocsary teaches and writes about Agency & Partnership, Contracts, Corporations, Securities Regulation, the Second Amendment, and Firearms Law, including the intersection of Firearms Law and private law. He is a co-author of Firearms Law and the Second Amendment: Regulation, Rights, and Policy (3rd ed. 2021), the first casebook on this topic.
Prior to his appointment at Wyoming, he served as an Associate Professor of Law at the Southern Illinois University School of Law and spent two years as a Visiting Assistant Professor at the University of Connecticut School of Law. He practiced corporate and bankruptcy law at Cravath, Swaine and Moore in New York, and clerked for the Honorable Harris L. Hartz of the U.S. Court of Appeals for the Tenth Circuit.
Professor Mocsary holds a J.D. from Fordham Law School and an M.B.A. from the University of Rochester Simon School of Business. At Fordham, he graduated first in his class, and served as Notes and Articles Editor of the Fordham Law Review. He has published in the George Washington Law Review, George Mason Law Review, Fordham Law Review, Duke Law Journal Online, and other journals. His work has been cited by the Supreme Court of the United States, several U.S. Courts of Appeals, the Supreme Court of Illinois, the Delaware Court of Chancery, and other courts.
Justice, Supreme Court of Texas
Justice Kyle D. Hawkins was appointed to the Supreme Court of Texas by Governor Greg Abbott in October 2025.
Justice Hawkins previously served in the U.S. Department of Justice as Counselor to the Solicitor General, where he represented the United States before the U.S. Supreme Court. Previously, he served as the Texas Solicitor General, the state’s chief appellate advocate charged with representing the state, its agencies, and its officers in state and federal appellate courts. Earlier in his career, he served as a law clerk for U.S. Supreme Court Justice Samuel A. Alito, Jr., and for Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit. As an appellate practitioner, Justice Hawkins argued five cases in the U.S. Supreme Court, nine in the Texas Supreme Court, and dozens more in other federal and state appellate courts.
In addition to his government service, Justice Hawkins served as a partner in the Dallas and Houston offices of Gibson, Dunn & Crutcher LLP, and he chaired the Texas appellate practice of Lehotsky Keller Cohn LLP, a national litigation boutique. Justice Hawkins has served as an Adjunct Professor of Law at the University of Texas School of Law.
Justice Hawkins lives in Austin, Texas, with his wife and four children.
Justice, Supreme Court of Texas
Justice Kyle D. Hawkins was appointed to the Supreme Court of Texas by Governor Greg Abbott in October 2025.
Justice Hawkins previously served in the U.S. Department of Justice as Counselor to the Solicitor General, where he represented the United States before the U.S. Supreme Court. Previously, he served as the Texas Solicitor General, the state’s chief appellate advocate charged with representing the state, its agencies, and its officers in state and federal appellate courts. Earlier in his career, he served as a law clerk for U.S. Supreme Court Justice Samuel A. Alito, Jr., and for Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit. As an appellate practitioner, Justice Hawkins argued five cases in the U.S. Supreme Court, nine in the Texas Supreme Court, and dozens more in other federal and state appellate courts.
In addition to his government service, Justice Hawkins served as a partner in the Dallas and Houston offices of Gibson, Dunn & Crutcher LLP, and he chaired the Texas appellate practice of Lehotsky Keller Cohn LLP, a national litigation boutique. Justice Hawkins has served as an Adjunct Professor of Law at the University of Texas School of Law.
Justice Hawkins lives in Austin, Texas, with his wife and four children.
Deputy General Counsel, Office of Texas Governor Greg Abbott
Trevor serves as General Counsel to Governor Greg Abbott. In that role he provides strategic counseling to the State’s Chief Executive Officer on a range of issues under both state and federal law, including litigation involving the Governor.
Before returning to Texas, Trevor worked in private practice in the Washington, D.C. area. At Clement & Murphy, he focused on complex litigation in federal and state courts—from deposing key witnesses before trial to briefing legal issues on appeal—in disputes that presented constitutional law, regulatory, products liability, and contracts issues.
Trevor has also spent years in government service. He previously served as an Assistant Attorney General for the State of Texas, where he represented clients before every level of the United States and Texas judiciaries in a range of areas spanning election law, state sovereign immunity, federal preemption, criminal procedure, and the Establishment Clause. And he has clerked for federal judges on the Fifth Circuit, the Sixth Circuit, and the Supreme Court of the United States.
For several years, Trevor taught as an adjunct professor a 2-credit course on the writ of habeas corpus, with course material covering the Suspension Clause, wartime detention, immigration, and post-conviction review.
Chairman, Supreme Court and Constitutional Law Practice, Baker Botts LLP
Aaron Streett is the Chairman of Baker Botts’ Supreme Court and Constitutional Law Practice. He has presented oral argument in scores of appeals, covering the U.S. Supreme Court and courts around the country—including over 40 arguments between the Fifth and D.C. Circuits alone. Mr. Streett’s practice involves virtually all substantive areas of the law, including commercial litigation, statutory interpretation, constitutional law, administrative law, securities, and jurisdictional issues. Mr. Streett maintains an active practice in the Supreme Court of the United States, having represented parties in merits cases seven times since 2010, as well as filing numerous amicus and certiorari-stage briefs. Mr. Streett was named one of only six “Appellate MVPs” for 2014 by Law360, which had previously recognized him in 2011 as one of the top five appellate “Rising Stars” under age 40. Mr. Streett has been featured on National Law Journal’s Appellate Hot List three times in recent years and in 2021 was named Houston’s “Lawyer of the Year” for Appellate Practice by Best Lawyers magazine. Mr. Streett is an elected member of the American Law Institute and a fellow of the American Academy of Appellate Lawyers. He serves on the Board of Directors for the Fifth Circuit Bar Association and previously served as President of the Houston Lawyers Chapter of the Federalist Society. Mr. Streett speaks regularly on the Supreme Court and constitutional law to attorneys and law students around the country. Following graduation from Hillsdale College and University of Texas School of Law, Mr. Streett served as a law clerk to the Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and to the Honorable William H. Rehnquist, Chief Justice of the United States.
Justice, Supreme Court of Texas
Justice Kyle D. Hawkins was appointed to the Supreme Court of Texas by Governor Greg Abbott in October 2025.
Justice Hawkins previously served in the U.S. Department of Justice as Counselor to the Solicitor General, where he represented the United States before the U.S. Supreme Court. Previously, he served as the Texas Solicitor General, the state’s chief appellate advocate charged with representing the state, its agencies, and its officers in state and federal appellate courts. Earlier in his career, he served as a law clerk for U.S. Supreme Court Justice Samuel A. Alito, Jr., and for Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit. As an appellate practitioner, Justice Hawkins argued five cases in the U.S. Supreme Court, nine in the Texas Supreme Court, and dozens more in other federal and state appellate courts.
In addition to his government service, Justice Hawkins served as a partner in the Dallas and Houston offices of Gibson, Dunn & Crutcher LLP, and he chaired the Texas appellate practice of Lehotsky Keller Cohn LLP, a national litigation boutique. Justice Hawkins has served as an Adjunct Professor of Law at the University of Texas School of Law.
Justice Hawkins lives in Austin, Texas, with his wife and four children.
State District Judge, Austin, Texas
Cory Liu is a state district judge in Austin, Texas. He previously served as assistant general counsel to Texas Governor Greg Abbott. Mr. Liu clerked for Judge Andrew Oldham on the U.S. Court of Appeals for the Fifth Circuit and Judge Danny Boggs on the U.S. Court of Appeals for the Sixth Circuit. He was Editor-in-Chief of the Harvard Journal of Law & Public Policy and is a graduate of Harvard Law School and the University of Chicago.
Justice, Supreme Court of Texas
Justice Kyle D. Hawkins was appointed to the Supreme Court of Texas by Governor Greg Abbott in October 2025.
Justice Hawkins previously served in the U.S. Department of Justice as Counselor to the Solicitor General, where he represented the United States before the U.S. Supreme Court. Previously, he served as the Texas Solicitor General, the state’s chief appellate advocate charged with representing the state, its agencies, and its officers in state and federal appellate courts. Earlier in his career, he served as a law clerk for U.S. Supreme Court Justice Samuel A. Alito, Jr., and for Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit. As an appellate practitioner, Justice Hawkins argued five cases in the U.S. Supreme Court, nine in the Texas Supreme Court, and dozens more in other federal and state appellate courts.
In addition to his government service, Justice Hawkins served as a partner in the Dallas and Houston offices of Gibson, Dunn & Crutcher LLP, and he chaired the Texas appellate practice of Lehotsky Keller Cohn LLP, a national litigation boutique. Justice Hawkins has served as an Adjunct Professor of Law at the University of Texas School of Law.
Justice Hawkins lives in Austin, Texas, with his wife and four children.
Justice, Supreme Court of Texas
Justice Kyle D. Hawkins was appointed to the Supreme Court of Texas by Governor Greg Abbott in October 2025.
Justice Hawkins previously served in the U.S. Department of Justice as Counselor to the Solicitor General, where he represented the United States before the U.S. Supreme Court. Previously, he served as the Texas Solicitor General, the state’s chief appellate advocate charged with representing the state, its agencies, and its officers in state and federal appellate courts. Earlier in his career, he served as a law clerk for U.S. Supreme Court Justice Samuel A. Alito, Jr., and for Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit. As an appellate practitioner, Justice Hawkins argued five cases in the U.S. Supreme Court, nine in the Texas Supreme Court, and dozens more in other federal and state appellate courts.
In addition to his government service, Justice Hawkins served as a partner in the Dallas and Houston offices of Gibson, Dunn & Crutcher LLP, and he chaired the Texas appellate practice of Lehotsky Keller Cohn LLP, a national litigation boutique. Justice Hawkins has served as an Adjunct Professor of Law at the University of Texas School of Law.
Justice Hawkins lives in Austin, Texas, with his wife and four children.
Dean and Anthony B. Buzbee Endowed Dean's Chair, Texas A&M University School of Law
A graduate of Princeton University's Woodrow Wilson School of Public and International Affairs and Yale Law School, Robert B. Ahdieh served as law clerk to Judge James R. Browning of the US Court of Appeals for the Ninth Circuit before his selection for the Honor's Program in the Civil Division of the US Department of Justice.
While still in law school, Ahdieh published what remains one of the seminal treatments of the constitutional transformation of post-Soviet Russia: "Russia's Constitutional Revolution—Legal Consciousness and the Transition to Democracy." Ahdieh's work has also appeared in the Boston University Law Review, Michigan Law Review, theMinnesota Law Review, the NYU Law Review, and the Southern California Law Review, among other journals.
Ahdieh’s scholarly interests revolve around questions of regulatory and institutional design, especially in the financial arena. His particular focus has been on various non-traditional regulatory structures and modes of regulation, including those grounded in dynamics of coordination. Though relatively less studied in the legal literature, the framework of coordination holds significant promise both in helping us theorize existing regulatory patterns and in defining new regulatory constructs for the future.
Ahdieh has explored regulatory and institutional design in a variety of transactional areas, including corporate and securities law, international trade and finance, and contracts. Within these, his work has emphasized two particular patterns of coordination. The first—intersystemic governance—draws on domestic regimes of federalism and transnational regimes of global governance and subsidiarity to highlight the potential benefits of complex systems of overlapping jurisdiction. The second draws on the dynamics at work in so-called “coordination games” to highlight distinct occasions for potential regulatory intervention, as well as various non-traditional regulatory forms, in our modern economic, social, and political order.
During the 2007–2008 academic year, Ahdieh was a visiting professor and the Microsoft/LAPA Fellow at Princeton University's Program in Law and Public Affairs. In Spring 2014, he served as Douglas McK. Brown Visiting Chair in Law, University of British Columbia. He has also visited at Columbia and Georgetown law schools, as well as numerous law schools overseas.
Texas Supreme Court
Justice Jimmy Blacklock was appointed to the Texas Supreme Court in January 2018 by Governor Greg Abbott. Before that, Jimmy served as Governor Abbott’s General Counsel and in the Attorney General’s Office under then-AG Abbott. While at the AG’s Office, he handled appeals and trials of constitutional cases in state and federal court involving matters such as federalism, religious liberty, and the separation of powers. As Deputy Attorney General for Legal Counsel, he oversaw the Open Records and Opinions divisions of the AG’s Office. Earlier in his career, Jimmy was appointed by President George W. Bush to serve in the Civil Rights Division of the U.S. Department of Justice, and he worked in private practice in Houston and Austin. He clerked for Judge Jerry Smith on the U.S. Court of Appeals for the 5th Circuit after graduating from U.T.-Austin (B.A., Plan II/History) and Yale Law School. He was born in Houston and now lives in Austin with his wife and three daughters.
Costa is a partner in Gibson Dunn’s Houston office and co-chair of the firm’s Trials Practice Group. Mr. Costa offers clients a unique perspective as the only former federal trial and appellate judge trying cases and leading investigations. His broad experience—having handled complex civil and criminal matters, at trial and on appeal, as advocate and judge—allows him to offer invaluable skills and strategic insights.
Before joining Gibson Dunn, Mr. Costa served for more than ten years as a federal trial and appellate judge. He served on the U.S. Court of Appeals for the Fifth Circuit from 2014 to 2022. After his nomination by President Obama, the Senate confirmed him by a vote of 97-0. No federal appellate judge nominated since has received more votes. Mr. Costa first served as a district judge for the Southern District of Texas from 2012 to 2014. When appointed to the bench, he was the youngest-sitting federal judge at age 39. Mr. Costa presided over thirty federal trials in four different venues (he continued handling district court matters while serving on the court of appeals). He wrote precedential opinions in almost every area of the law, including antitrust, intellectual property, class actions, international arbitration, securities fraud, bankruptcy, conflicts of law, labor and employment, oil and gas, False Claims Act, administrative law, constitutional law, and criminal law. In press accounts of his tenure, he was described as an “exceptionally gifted jurist” with a “towering intellect” who was “respected by all sides.” The Federal Judicial Center invited Mr. Costa on multiple occasions to teach new federal district judges.
Before taking the bench, Mr. Costa was an Assistant U.S. Attorney in Houston from 2005 to 2012. As a prosecutor, he tried more than 15 jury trials, including serving as a lead prosecutor of Allen Stanford, the head of Stanford Financial Group, for orchestrating a multibillion-dollar international fraud scheme. Mr. Costa is featured in a documentary about the case, The Man Who Bought Cricket. A Reuters article about the trial quotes a victim who said that Mr. Costa’s closing argument “brought her to tears.” For his work on the Stanford case, Mr. Costa received the John Marshall Award for Trial of Litigation and the Assistant Attorney General’s Award for Exceptional Service. He also prosecuted cases involving kickbacks in the energy industry, public corruption, the Foreign Corrupt Practices Act, securities fraud, internet fraud, and counterfeit technology products. During his time as a federal prosecutor, Mr. Costa served as the Southern District of Texas’s Deputy International Affairs Coordinator, during which he assisted with investigations in more than a dozen countries.
Mr. Costa is a frequent speaker and author on legal topis, including writing for the ABA’s Litigation Journal on various trial-related issues. He also taught Federal Jurisdiction at the University of Houston Law Center, where he was named an Honorary Alumnus.
After college, Mr. Costa taught elementary school for two years in the Mississippi Delta through Teach for America. He has remained involved in the Delta and in education, launching a nonprofit in Mississippi, serving on the board of the Houston Urban Debate League, and helping teach Government at a Houston‑area charter school.
U.S. District Court for the Northern District of Texas
Reed Charles O'Connor is a federal judge on the United States District Court for the Northern District of Texas. He joined the court in 2007 after being nominated by President George W. Bush.
A native of Houston, Texas, O'Connor graduated from the University of Houston with his bachelor's degree in 1986 and from South Texas College of Law with his J.D. in 1989.
Executive General Counsel, First Liberty Institute
Hiram Sasser is Executive General Counsel for First Liberty Institute, where he oversees First Liberty’s litigation and media efforts. Sasser’s practice focuses on First Amendment and other constitutional and civil rights issues relating to religious liberty. Sasser served as co-counsel in seven victories before the United States Supreme Court, including Groff v. DeJoy (landmark case overturning the “de minimis cost” test for Title VII in place almost 50 years), Kennedy v. Bremerton (landmark case overturning 50 years of Establishment Clause precedent), Carson v. Makin (overturning 40 years of Maine’s discrimination against parents choosing faith-based schools), American Legion v. American Humanist Association (landmark case ending Establishment Clause attacks on veterans’ memorials with religious imagery), Klein v. Oregon Bureau of Labor and Industries (granted, vacated, and remanded (twice) in religious wedding service case), and Sause v. Bauer (summary reversal revoking qualified immunity for police who ordered a citizen not to pray in her own home).
In addition to his legal duties, Sasser develops, coordinates, and implements successful media strategies on behalf of his clients. This includes numerous appearances on ABC, NBC, CBS, Fox News, CNN, and the BBC as well as being heard on various radio stations throughout the United States, Asia, Africa, and Europe.
In 2016, Sasser took a leave of absence to serve a temporary assignment as the Chief of Staff for the Attorney General of Texas. He currently serves as an Adjunct Professor of Law at both The University of Texas at Austin School of Law (teaching Religious Liberty) and Oklahoma City University School of Law (teaching Civil Rights Procedure).
Regional Deputy General Counsel, North America and Lead Counsel, Treasury, Willis Towers Watson
The Second Amendment and the Supreme Court
Houston Lawyer Chapter
Houston, TXA Court in Transition: A Conversation with Justice Kyle Hawkins - Houston
Houston Lawyer Chapter
Houston, TXA Court in Transition: A Conversation with Justice Kyle Hawkins
Dallas Lawyer Chapter
Dallas, TXU.S. Supreme Court Roundup - Austin 2025
Austin Lawyers Chapter
Austin, TXTopics
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