New York’s attorney general is urging a federal judge to reject a motion for a preliminary injunction that would prevent enforcement of a requirement that the conservative advocacy group Citizens United file a list of its confidential donors with the state.

The effort by Citizens United and the Citizens United Foundation is unsupported by the law and has “no likelihood” of succeeding, Attorney General Eric Schneiderman’s office said in a memorandum of law filed Thursday before Southern District Judge Sidney Stein (See Profile) in Citizens United v. Schneiderman, 14-cv-3703.