Jenner & Block

Tassity S. Johnson is a member of the Appellate and Supreme Court Practice Group and an associate in the firm’s Litigation Department.  Her practice focuses on appellate and trial litigation concerning constitutional, statutory, and regulatory matters.

Ms. Johnson has substantial experience in a number of areas and industries, including First Amendment rights, consumer law, voting rights, energy, environmental law, and commercial litigation. She represents clients in a variety of industries, including technology companies in matters involving First Amendment, antitrust, and consumer issues. She has litigated cases involving complex regulatory schemes, statutory interpretation, administrative law issues, and federal constitutional claims. Ms. Johnson has authored dispositive motions and appellate briefs; interviewed, deposed, and examined witnesses; and presented oral argument in federal and state court.

Ms. Johnson maintains an active pro bono practice, representing clients in immigration, voting rights, and free speech matters at both the trial and appellate level.  She has helped litigate a number of novel First Amendment public forum challenges to government official conduct on social media platforms, including Knight First Amendment Institute v. Trump. 

Prior to joining the firm, Ms. Johnson was the Francis D. Murnaghan Appellate Advocacy Fellow at the Public Justice Center, where she successfully briefed and argued multiple appeals before the highest court of Maryland; a law clerk to the Honorable Martha C. Daughtrey of the United States Court of Appeals for the Sixth Circuit; and a law clerk to the Honorable Janet C. Hall, Chief Judge of the United States District Court for the District of Connecticut.

Ms. Johnson received her J.D. in 2013 from Yale Law School, where she was awarded the Francis Wayland Prize for the greatest proficiency in litigation; was a member of the Immigration Legal Services and Transnational Development Clinics; and was managing editor and articles editor for the Yale Journal of Law and Feminism.  Ms. Johnson received her B.A. in literature and cultural theory in 2010 from Duke University, where she was awarded the Bascom Headen Palmer Prize for the best senior thesis in the humanities.