The two officials—Paul Perkins, an associate deputy attorney general, and Brian Nieves, a deputy chief of staff and senior policy counsel—were seeking access to the U.S. Copyright Office but were denied entry at around 9 a.m., sources who spoke on the condition of anonymity told The New York Times.

Despite Trump’s appointment of Blanche as acting librarian of Congress, library staff have reportedly been recognizing Robert Newlen as their interim replacement instead, according to The Times’ sources. Newlen was principal deputy librarian and Hayden’s second-in-command.

Staff seem to be waiting for direction from Congress, with Newlen additionally sending an email to employees saying he did not recognize Blanche’s appointment as valid, according to Politico.