 When a New York Post Office mail sorter (Jack Albertson) sees Susan's letter, which is addressed to Kris at the New York courthouse, he suggests delivering all of the letters addressed to Santa Claus, in the dead letter office, to Kris.When court resumes, Fred still has not found some competent authority to back Kris's claim, but then an official gestures to Fred about the arrival of the mailbags at the courthouse.Fred presents Harper with three of the letters, addressed simply to "Santa Claus" that were just now delivered to Kris, asserting that the Post Office—a branch of the U.S. federal government—has acknowledged that Kris is the one and only Santa Claus.