NEW YORK (Reuters) - Manhattan District Attorney Alvin Bragg on Tuesday sued Rep. Jim Jordan (R-OH) to stop what Bragg called an "unconstitutional attack" on the ongoing criminal prosecution of former President Donald Trump in New York.

The lawsuit filed on Tuesday aims to block a subpoena of Mark Pomerantz, a former prosecutor who led the Manhattan district attorney's investigation of Trump. The subpoena, issued by the House Judiciary Committee that Jordan chairs, had sought Pomerantz's appearance before the committee for a deposition.

(Reporting by Kanishka Singh in Washington; editing by Doina Chiacu)