Mr. Shaffer has served as lead attorney or otherwise played central roles in many of the firm's high-profile trial and appellate matters. To date, he has represented six States and handled cases before numerous tribunals, including the U.S. Supreme Court, U.S. courts of appeals and district courts, state supreme courts, administrative tribunals, and the NCAA. Specific highlights of Mr. Shaffer's work at the firm include:

• obtaining from the D.C. Circuit reversal and vacatur of the Drug Enforcement Administration's adverse administrative decision that had foreclosed a client engaged in nationwide drug compounding from handling controlled substances;
• obtaining a confidential settlement in excess of $20 million in a large intellectual property dispute between private parties;
• obtaining from the U.S. Department of Agriculture an unprecedented payment of attorney's fees after successfully exonerating an elephant handler over the course of protracted, hotly-contested administrative proceedings;
• successfully representing the State of Tennessee in federal district court and then the Sixth Circuit in disputes over proposed Medicaid reforms as they related to governing consent decrees;
• successfully representing Governor Acevedo-Villa in federal district court and then the First Circuit in a constitutional dispute over ballots that ultimately determined the result of Puerto Rico's 2004 gubernatorial election;
• representing the National Rifle Association before a three-judge district court and then the U.S. Supreme Court in McConnell v. FEC, a seminal (albeit largely unsuccessful) first-amendment challenge to campaign finance reform; and
• successfully defending Florida's disqualification of convicted felons from voting against constitutional and statutory challenge before a federal district court, the Eleventh Circuit, and U.S. Supreme Court.