Manhattan District Attorney Alvin Bragg on Tuesday filed a lawsuit against U.S. House Judiciary Committee Chairman Jim Jordan, R-Ohio, who has led a congressional probe into Bragg’s indictment of former President Donald Trump, and former special assistant to the Manhattan DA Mark Pomerantz, urging the court to enjoin the enforcement of Jordan’s subpoena against Pomerantz.

“Chairman Jordan’s subpoena is an unconstitutional attempt to undermine an ongoing New York felony criminal prosecution and investigation,” Bragg said in a statement. “This is an unprecedented, illegitimate interference by Congress that lacks any legal merit and defies basic principles of federalism.”