Friend-of-the-Court Brief

The Brennan Center filed a friend-of-the-court brief in a Louisiana redistricting case where the Supreme Court has asked parties to address whether Section 2 of the Voting Rights Act continues to be constitutional.

The Brennan Center and co-counsel Levine Lee filed an amicus brief on behalf of former New York judges and justices in defense of New York’s Protect Our Courts Act, arguing that ICE’s warrantless civil arrests at courthouses undermines the proper functioning of state courts. 

On November 17, 2025, the district court granted New York’s motion to dismiss.

A group of 4 voting rights historians represented by Mayer Brown LLP have filed a brief in Turtle Mountain Band of Chippewa Indians v. Howe, an appeal involving Section 2 of the Voting Rights Act (VRA).

Two U.S. historians and professors of legal history represented by Kendall Brill & Kelly LLP have filed a brief challenging an executive order undermining birthright citizenship.

Two U.S. historians and professors of legal history represented by Kendall Brill & Kelly LLP have filed a brief challenging an executive order undermining birthright citizenship.

Two U.S. historians and professors of legal history represented by Kendall Brill & Kelly LLP have filed a brief challenging an executive order undermining birthright citizenship.

The lawsuit challenges President Trump’s invocation of the Alien Enemies Act to deport alleged Venezuelan gang members.  

On May 20, 2025, the Brennan Center for Justice filed an amicus brief in support of the plaintiffs’ motion for a preliminary injunction and opposing the government’s motion to transfer the case to the United States Court of International Trade on the grounds that the International Emergency Economic Powers Act does not authorize the president to impose tariffs.

The Brennan Center filed briefs in several cases challenging President Trump’s unilateral imposition of global tariffs under the International Emergency Economic Powers Act.

On May 12, 2025, the Brennan Center for Justice filed an amicus brief in Emily Ley Paper et al., v. Trump, opposing the government’s motion to transfer the case to the United States Court of International Trade on the grounds that the International Emergency Economics Powers Act does not authorize the president to impose tariffs.