At the end of tonight's proceedings in the Senate impeachment trial, Chief Justice John Roberts said a “a single one paged classified document identified by the House managers for filing with the Secretary of the Senate” will be made available for senators to review in a classified setting. The document pertains to supplemental testimony from Jennifer Williams, a national security aide to Vice President Mike Pence who testified before the House impeachment inquiry in November. “On November 26, 2019, the House Intelligence Committee received supplemental testimony from Jennifer Williams, assistant to Vice President Mike Pence. On December 11, 2019, after consultation with the ranking minority member, Chairman Schiff transmitted that supplemental testimony to the House Judiciary Committee to be made part of the record in consideration of articles of impeachment," a Democratic official working on the impeachment trial said in a written statement. The official added: “Although there appears to be no basis for keeping it classified, the Office of the Vice President has ignored two requests to declassify this document. This supplemental testimony will allow the Senate to see further corroborative evidence as it considers articles of impeachment, and, if declassified, it would provide the public further understanding of the events in question.” More on Williams' testimony from November: Williams described President Trump's July 25 call with Ukrainian President Volodymyr Zelensky in her deposition as "inappropriate." Trump's July 25 call is at the center of the impeachment trial, in which a whistleblower complaint alleges Trump asked for dirt on former Vice President Joe Biden, a 2020 presidential rival, and his son Hunter Biden. There is no evidence of wrongdoing by either Biden in Ukraine.