Michael Lissack v. Cmsnr. IRS

United States Court of Appeals FOR THE DISTRICT OF COLUMBIA CIRCUIT Argued November 14, 2022 Decided May 26, 2023 No. 21-1268 MICHAEL LISSACK, APPELLANT v. COMMISSIONER OF INTERNAL REVENUE, APPELLEE On Appeal from a Decision of the United States Tax Court Erica L. Brady-Gitlin argued the cause for appellant. With her on the briefs were Gregory S. Lynam and Scott A. Knott. Brian C. Wille and Usman Mohammad were on the brief for amicus curiae Whistleblower 1109-13W in support of appellant. Dean Zerbe and Stephen M. Kohn were on the brief for amicus curiae National Whistleblower Center in…