Ari Holtzblatt


Holtzblatt, Ari

Ari Holtzblatt focuses his practice on appellate matters and government and regulatory litigation. He has been involved in briefing and oral argument for high-profile matters in the US Supreme Court and the federal courts of appeals involving administrative law, antitrust law, copyright law, patent law, class action litigation, contract law, criminal law and procedure, immigration law, the Employee Retirement Income Security Act (ERISA), the Controlled Substances Act, and the First Amendment.  

Most recently, Mr. Holtzblatt worked as a law clerk for the Honorable Ruth Bader Ginsburg of the Supreme Court of the United States. He previously served as a law clerk for the Honorable David Tatel of the US Court of Appeals for the District of Columbia Circuit. 

While pursuing his legal education, Mr. Holtzblatt served as a Coker Fellow and was a Senior Editor on The Yale Law Journal. In addition, as a member of the Worker and Immigrant Rights Advocacy Clinic, he represented clients arrested for alleged immigration violations in a successful federal civil rights suit. 

Prior to his legal career, Mr. Holtzblatt oversaw the public policy efforts of Local 32BJ SEIU in New York City, the nation’s largest property services workers local union. 

Publications & News


April 18, 2018

WilmerHale Recognized for Pro Bono Work by Immigrant Defense Project

On April 10, WilmerHale was recognized by the Immigrant Defense Project (IDP) for its work in the area of immigrant rights. The firm and other honorees were recognized at the IDP's 20th Anniversary Gala in New York City.

April 16, 2018

Congress Enacts Law Creating a Sex Trafficking Exception From the Immunity Provided by Section 230 of the Communications Decency Act

On Wednesday, April 11, the President signed into law the Allow States and Victims to Fight Online Sex Trafficking Act of 2017, also known as “FOSTA.”

April 2, 2018

WilmerHale Team Obtains Fifth Circuit Victory in High-Profile Fiduciary Rule Case

A team of WilmerHale litigators recently achieved a major victory when the US Court of Appeals for the Fifth Circuit vacated the US Department of Labor's highly controversial Fiduciary Rule, giving opponents of the regulations embodied by the rule their first victory after several previously unsuccessful lawsuits.

March 26, 2018

Congress Enacts Law Clarifying Reach of Warrants for Overseas Data

On Friday, March 23, President Trump signed into law the Clarifying Lawful Overseas Use of Data Act (CLOUD Act), which amends the Stored Communications Act (SCA), 18 U.S.C. § 2701, et seq., to require providers of electronic communication services or remote computing services to produce data sought by the government under the SCA, regardless of whether the data are located within or outside the United States.

March 8, 2017

President Trump Signs Revised Immigration Executive Order

On March 6, 2017, President Trump signed a substantially narrowed version of the January 27, 2017 Executive Order titled “Protecting the Nation from Foreign Terrorist Entry into the United States.”

June 22, 2012

Supreme Court Rules Unanimously in Favor of ABC and Other Broadcasters in FCC Indecency Case


Skip Navigation Links.


JD, Yale Law School, 2010

BA, Ethics, Politics and Economics, magna cum laude, Yale University, 2001, Phi Beta Kappa

Bar Admissions

District of Columbia



The Hon. Ruth Bader Ginsburg, US Supreme Court, 2014 - 2015

The Hon. David S. Tatel, US Court of Appeals for the District of Columbia Circuit, 2010 - 2011

Skip Navigation Links.