Judge, United States Court of Appeals, Sixth Circuit
Judge Readler earned his undergraduate and law degrees from the University of Michigan. After graduating, he served as a law clerk to Judge Alan Norris of the United States Court of Appeals for the Sixth Circuit. Judge Readler then began practicing law in the Columbus office of the international law firm Jones Day, eventually spending ten years as a partner in the firm’s Issues and Appeals Practice Group. While at Jones Day, Judge Readler appeared in state and federal trial and appellate courts around the country, most frequently the Supreme Court of Ohio and the Sixth Circuit. Judge Readler also successfully argued before the United States Supreme Court in McQuiggin v. Perkins on behalf of an inmate claiming actual innocence. His other pro bono representations include representing capital defendants before the Tenth Circuit and the Supreme Court of Ohio, as well as representing defendants sentenced to life in prison before the Sixth Circuit. While at Jones Day, Judge Readler traveled to Nairobi with Lawyers Without Borders to train Kenyan lawyers in prosecuting domestic violence cases, and he was also a recipient of the American Marshall Memorial Fellowship awarded by the German Marshall Fund of the United States. Following his career in private practice, Judge Readler served as Acting Assistant Attorney General for the Civil Division of the United States Department of Justice from 2017 to 2019. In that role, Judge Readler led and supervised over 1,000 lawyers in the Department’s largest litigating division, briefing and arguing several cases on behalf of the United States in federal courts across the country, including high-profile cases significant to the Administration and the Department. In March 2019, Judge Readler was confirmed to serve as a Circuit Judge on the Sixth Circuit. He resides in Columbus.
Partner, King & Spalding
John Richter is a trial and investigations partner in the Special Matters and Investigations Practice Group, and represents and defends companies, Boards of Directors, Board committees, and individuals facing a variety of white-collar criminal and regulatory enforcement matters, parallel civil litigation, and internal corporate investigations. John previously served as the Acting Assistant Attorney General in charge of the Criminal Division at the U.S. Department of Justice and as the U.S. Attorney for the Western District of Oklahoma, having been nominated by President George W. Bush and confirmed by unanimous consent of the U.S. Senate.
Partner, Husch Blackwell LLP
With three decades of experience as a prosecutor, Gregg counsels businesses and individuals in connection with a range of criminal, civil and regulatory matters, including government investigations, internal investigations, litigation, export control, sanctions, trade secrets and regulatory compliance.
Gregg’s extensive background in criminal and national security law, combined with his understanding of government practices and operations, allow him to pinpoint the risks and opportunities that arise in investigatory settings, to put together efficient and effective teams of legal professionals, and to mount a vigorous defense when necessary. Gregg has a strong track record as an accomplished trial lawyer, particularly in complex, high-profile jury trials.
Prior to entering private practice, Gregg served as the United States Attorney for the Western District of Texas—one of the largest and busiest United States Attorney’s Offices in the country—where he supervised more than 300 employees handling a diverse caseload, including matters involving complex white-collar crime, contract fraud, national security, cyber crimes, public corruption, money laundering, export violations, trade secrets, tax, large-scale drug and human trafficking, immigration, child exploitation and violent crime. Gregg has also served as Counselor to the Attorney General of the United States, where he handled both criminal and national security matters, as well as crisis response. He was an Assistant United States Attorney in the U.S. Attorney’s Office for the Western District of Texas for 14 years, where he developed a reputation as an aggressive litigator and indefatigable investigator while building an impressive record handling national security, fraud, violent crime and corruption cases. Before that, he served in various roles in both the Criminal and National Security Divisions of the Department of Justice in Washington, DC. Gregg was a state prosecutor as well, handling murder, gang and other complex cases in New York County for nearly 11 years.
Throughout his career, Gregg has worked closely with the Federal Bureau of Investigation, Internal Revenue Service, Department of Commerce and other federal law enforcement and intelligence agencies. He led task forces in the Department of Justice and spearheaded the Department’s effort to improve its electronic litigation capabilities, focusing heavily on discovery. Gregg understands criminal law, national security law, the justice system, government investigations and the discovery process inside and out. His extensive and varied background means that he can provide clients with realistic and accurate expectations of how a government investigation or prosecution will proceed and where challenges may arise.
Judge, United States Court of Appeals, Sixth Circuit
Judge Readler earned his undergraduate and law degrees from the University of Michigan. After graduating, he served as a law clerk to Judge Alan Norris of the United States Court of Appeals for the Sixth Circuit. Judge Readler then began practicing law in the Columbus office of the international law firm Jones Day, eventually spending ten years as a partner in the firm’s Issues and Appeals Practice Group. While at Jones Day, Judge Readler appeared in state and federal trial and appellate courts around the country, most frequently the Supreme Court of Ohio and the Sixth Circuit. Judge Readler also successfully argued before the United States Supreme Court in McQuiggin v. Perkins on behalf of an inmate claiming actual innocence. His other pro bono representations include representing capital defendants before the Tenth Circuit and the Supreme Court of Ohio, as well as representing defendants sentenced to life in prison before the Sixth Circuit. While at Jones Day, Judge Readler traveled to Nairobi with Lawyers Without Borders to train Kenyan lawyers in prosecuting domestic violence cases, and he was also a recipient of the American Marshall Memorial Fellowship awarded by the German Marshall Fund of the United States. Following his career in private practice, Judge Readler served as Acting Assistant Attorney General for the Civil Division of the United States Department of Justice from 2017 to 2019. In that role, Judge Readler led and supervised over 1,000 lawyers in the Department’s largest litigating division, briefing and arguing several cases on behalf of the United States in federal courts across the country, including high-profile cases significant to the Administration and the Department. In March 2019, Judge Readler was confirmed to serve as a Circuit Judge on the Sixth Circuit. He resides in Columbus.
Partner, Davis Graham & Stubbs LLP
Mark Champoux helps clients resolve significant disputes arising in litigation, government enforcement, and regulatory actions in forums across the country. He rejoined Davis Graham & Stubbs LLP in July 2020 after serving as Principal Deputy Assistant Attorney General in the U.S. Department of Justice’s Office of Legal Policy, where he was a primary policy advisor to the Attorney General and coordinated major initiatives relating to regulations, emerging technologies, data privacy, national security, and law enforcement. Mr. Champoux also supervised DOJ’s work in supporting federal judicial nominations, personally preparing over 100 nominees for confirmation by the Senate and overseeing DOJ’s work to secure the confirmation of U.S. Supreme Court Justice Brett M. Kavanaugh, an undertaking that earned him the Attorney General’s Distinguished Service Award.
Mr. Champoux has an extensive record of experience in private practice. He has successfully defended both Fortune 500 companies and small businesses, obtaining complete defense judgments through dispositive motions and trial and leveraging favorable settlements by winning key motions and defeating class certification. In recognition of his litigation work, Benchmark Litigation named Mr. Champoux to the nationwide 40 & Under Hot List in 2016-2017. Mr. Champoux was also named a “Rising Star” by Super Lawyers magazine in 2014-2017 and a “Future Litigation Star” by Benchmark Litigation in 2015.
Mr. Champoux’s practice includes disputes involving emerging technologies, data privacy, natural resources, oil and gas, environmental liabilities, government enforcement, and regulations. He also has substantial experience in a broad range of other litigation areas, including contracts, business torts, real estate, securities fraud, shareholder actions, civil RICO, products liability, and special districts.
Mr. Champoux has also handled numerous pro bono criminal matters, including a successful petition for certiorari in the U.S. Supreme Court with subsequent reversal of conviction for an indigent criminal defendant.
Mr. Champoux received his J.D. in 2007 from Harvard Law School, where he was deputy editor-in-chief of the Harvard Journal of Law & Public Policy, and his B.A. in 2004 from Brigham Young University, graduating magna cum laude and as valedictorian. Before first joining DGS in 2012, Mr. Champoux was a trial attorney at Kirkland & Ellis LLP in Washington, D.C. and clerked for then-Judge Neil M. Gorsuch on the U.S. Court of Appeals for the Tenth Circuit.
Judge, United States Court of Appeals, Sixth Circuit
Judge Readler earned his undergraduate and law degrees from the University of Michigan. After graduating, he served as a law clerk to Judge Alan Norris of the United States Court of Appeals for the Sixth Circuit. Judge Readler then began practicing law in the Columbus office of the international law firm Jones Day, eventually spending ten years as a partner in the firm’s Issues and Appeals Practice Group. While at Jones Day, Judge Readler appeared in state and federal trial and appellate courts around the country, most frequently the Supreme Court of Ohio and the Sixth Circuit. Judge Readler also successfully argued before the United States Supreme Court in McQuiggin v. Perkins on behalf of an inmate claiming actual innocence. His other pro bono representations include representing capital defendants before the Tenth Circuit and the Supreme Court of Ohio, as well as representing defendants sentenced to life in prison before the Sixth Circuit. While at Jones Day, Judge Readler traveled to Nairobi with Lawyers Without Borders to train Kenyan lawyers in prosecuting domestic violence cases, and he was also a recipient of the American Marshall Memorial Fellowship awarded by the German Marshall Fund of the United States. Following his career in private practice, Judge Readler served as Acting Assistant Attorney General for the Civil Division of the United States Department of Justice from 2017 to 2019. In that role, Judge Readler led and supervised over 1,000 lawyers in the Department’s largest litigating division, briefing and arguing several cases on behalf of the United States in federal courts across the country, including high-profile cases significant to the Administration and the Department. In March 2019, Judge Readler was confirmed to serve as a Circuit Judge on the Sixth Circuit. He resides in Columbus.
Judge, United States Court of Appeals, Sixth Circuit
Judge Readler earned his undergraduate and law degrees from the University of Michigan. After graduating, he served as a law clerk to Judge Alan Norris of the United States Court of Appeals for the Sixth Circuit. Judge Readler then began practicing law in the Columbus office of the international law firm Jones Day, eventually spending ten years as a partner in the firm’s Issues and Appeals Practice Group. While at Jones Day, Judge Readler appeared in state and federal trial and appellate courts around the country, most frequently the Supreme Court of Ohio and the Sixth Circuit. Judge Readler also successfully argued before the United States Supreme Court in McQuiggin v. Perkins on behalf of an inmate claiming actual innocence. His other pro bono representations include representing capital defendants before the Tenth Circuit and the Supreme Court of Ohio, as well as representing defendants sentenced to life in prison before the Sixth Circuit. While at Jones Day, Judge Readler traveled to Nairobi with Lawyers Without Borders to train Kenyan lawyers in prosecuting domestic violence cases, and he was also a recipient of the American Marshall Memorial Fellowship awarded by the German Marshall Fund of the United States. Following his career in private practice, Judge Readler served as Acting Assistant Attorney General for the Civil Division of the United States Department of Justice from 2017 to 2019. In that role, Judge Readler led and supervised over 1,000 lawyers in the Department’s largest litigating division, briefing and arguing several cases on behalf of the United States in federal courts across the country, including high-profile cases significant to the Administration and the Department. In March 2019, Judge Readler was confirmed to serve as a Circuit Judge on the Sixth Circuit. He resides in Columbus.
Partner, King & Spalding
John Richter is a trial and investigations partner in the Special Matters and Investigations Practice Group, and represents and defends companies, Boards of Directors, Board committees, and individuals facing a variety of white-collar criminal and regulatory enforcement matters, parallel civil litigation, and internal corporate investigations. John previously served as the Acting Assistant Attorney General in charge of the Criminal Division at the U.S. Department of Justice and as the U.S. Attorney for the Western District of Oklahoma, having been nominated by President George W. Bush and confirmed by unanimous consent of the U.S. Senate.
Partner, Husch Blackwell LLP
With three decades of experience as a prosecutor, Gregg counsels businesses and individuals in connection with a range of criminal, civil and regulatory matters, including government investigations, internal investigations, litigation, export control, sanctions, trade secrets and regulatory compliance.
Gregg’s extensive background in criminal and national security law, combined with his understanding of government practices and operations, allow him to pinpoint the risks and opportunities that arise in investigatory settings, to put together efficient and effective teams of legal professionals, and to mount a vigorous defense when necessary. Gregg has a strong track record as an accomplished trial lawyer, particularly in complex, high-profile jury trials.
Prior to entering private practice, Gregg served as the United States Attorney for the Western District of Texas—one of the largest and busiest United States Attorney’s Offices in the country—where he supervised more than 300 employees handling a diverse caseload, including matters involving complex white-collar crime, contract fraud, national security, cyber crimes, public corruption, money laundering, export violations, trade secrets, tax, large-scale drug and human trafficking, immigration, child exploitation and violent crime. Gregg has also served as Counselor to the Attorney General of the United States, where he handled both criminal and national security matters, as well as crisis response. He was an Assistant United States Attorney in the U.S. Attorney’s Office for the Western District of Texas for 14 years, where he developed a reputation as an aggressive litigator and indefatigable investigator while building an impressive record handling national security, fraud, violent crime and corruption cases. Before that, he served in various roles in both the Criminal and National Security Divisions of the Department of Justice in Washington, DC. Gregg was a state prosecutor as well, handling murder, gang and other complex cases in New York County for nearly 11 years.
Throughout his career, Gregg has worked closely with the Federal Bureau of Investigation, Internal Revenue Service, Department of Commerce and other federal law enforcement and intelligence agencies. He led task forces in the Department of Justice and spearheaded the Department’s effort to improve its electronic litigation capabilities, focusing heavily on discovery. Gregg understands criminal law, national security law, the justice system, government investigations and the discovery process inside and out. His extensive and varied background means that he can provide clients with realistic and accurate expectations of how a government investigation or prosecution will proceed and where challenges may arise.
Partner, King & Spalding
John Richter is a trial and investigations partner in the Special Matters and Investigations Practice Group, and represents and defends companies, Boards of Directors, Board committees, and individuals facing a variety of white-collar criminal and regulatory enforcement matters, parallel civil litigation, and internal corporate investigations. John previously served as the Acting Assistant Attorney General in charge of the Criminal Division at the U.S. Department of Justice and as the U.S. Attorney for the Western District of Oklahoma, having been nominated by President George W. Bush and confirmed by unanimous consent of the U.S. Senate.
Partner, Husch Blackwell LLP
With three decades of experience as a prosecutor, Gregg counsels businesses and individuals in connection with a range of criminal, civil and regulatory matters, including government investigations, internal investigations, litigation, export control, sanctions, trade secrets and regulatory compliance.
Gregg’s extensive background in criminal and national security law, combined with his understanding of government practices and operations, allow him to pinpoint the risks and opportunities that arise in investigatory settings, to put together efficient and effective teams of legal professionals, and to mount a vigorous defense when necessary. Gregg has a strong track record as an accomplished trial lawyer, particularly in complex, high-profile jury trials.
Prior to entering private practice, Gregg served as the United States Attorney for the Western District of Texas—one of the largest and busiest United States Attorney’s Offices in the country—where he supervised more than 300 employees handling a diverse caseload, including matters involving complex white-collar crime, contract fraud, national security, cyber crimes, public corruption, money laundering, export violations, trade secrets, tax, large-scale drug and human trafficking, immigration, child exploitation and violent crime. Gregg has also served as Counselor to the Attorney General of the United States, where he handled both criminal and national security matters, as well as crisis response. He was an Assistant United States Attorney in the U.S. Attorney’s Office for the Western District of Texas for 14 years, where he developed a reputation as an aggressive litigator and indefatigable investigator while building an impressive record handling national security, fraud, violent crime and corruption cases. Before that, he served in various roles in both the Criminal and National Security Divisions of the Department of Justice in Washington, DC. Gregg was a state prosecutor as well, handling murder, gang and other complex cases in New York County for nearly 11 years.
Throughout his career, Gregg has worked closely with the Federal Bureau of Investigation, Internal Revenue Service, Department of Commerce and other federal law enforcement and intelligence agencies. He led task forces in the Department of Justice and spearheaded the Department’s effort to improve its electronic litigation capabilities, focusing heavily on discovery. Gregg understands criminal law, national security law, the justice system, government investigations and the discovery process inside and out. His extensive and varied background means that he can provide clients with realistic and accurate expectations of how a government investigation or prosecution will proceed and where challenges may arise.
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