[2] He earned his bachelor's degree summa cum laude and Phi Beta Kappa from Princeton University's Woodrow Wilson School of Public and International Affairs in 1983.

[2] Giuffra represented Robert Wallach, counsel to former U.S. Attorney General Edwin Meese, in obtaining the dismissal of his conviction in the Wedtech case; Armand D'Amato, the brother of then-Senator Alfonse D'Amato, in securing the reversal of his mail fraud conviction; David Duncan, the former Arthur Andersen LLP partner who served as lead auditor for Enron and whose guilty plea was later vacated by a federal court; Vornado Chairman and CEO Steven Roth at trial and on appeal.

[15] During 2015, Giuffra also represented DISH Network and EchoStar in obtaining the dismissal of tortious interference claims seeking billions of dollars in damages in an adversary proceeding begun in connection with LightSquared’s Chapter 11 cases.

[17] Giuffra represented Fiat Chrysler Automobiles in its litigation with the U.S. Department of Justice, Environmental Protection Agency and California Air Resources Board and class action plaintiffs over alleged violations of diesel vehicle emissions regulations.

[19] Giuffra was counsel for Volkswagen AG in the multi-district litigation arising from government investigations into the automaker's use of defeat device software.

[22][23][24][25][26][27] Giuffra reportedly was one of the attorneys who declined to represent President Donald Trump in special counsel Robert Mueller's investigation of Russian efforts to interfere with the 2016 U.S. presidential election.

[29] At Sullivan & Cromwell, Giuffra is currently leading the appeal against the prosecution of Donald Trump in New York, which had produced a criminal conviction and unconditional discharge in January 2025.

[7] Giuffra served as chief counsel to the Senate Committee on Banking, Housing, and Urban Affairs from 1995 to 1996, helping to draft the Private Securities Litigation Reform Act of 1995.