Washington - A federal judge said Wednesday he may order Democratic presidential front-runner Hillary Clinton to testify under oath about whether she used a private email server as secretary of state to evade public records disclosures.

U.S. District Court Judge Emmet G. Sullivan signed an order granting a request from the conservative legal advocacy group Judicial Watch to question six current and former State Department staffers about the creation and purpose of the private email system. Those on the list were some of Clinton’s closest aides during her tenure as the nation’s top diplomat, including former chief of staff Cheryl D. Mills, deputy chief of staff Huma Abedin and undersecretary Patrick F. Kennedy.

Also set to testify is Bryan Pagliano, the agency employee who was tasked with setting up the clintonemail.com server located in the basement of the New York home Clinton shares with her husband, former President Bill Clinton. Pagliano has previously refused to testify before Congress, citing his Fifth Amendment right against self-incrimination.

Based on what might be gleaned in those interviews, which are to be conducted over the next eight weeks, Sullivan says in his order a sworn deposition from Hillary Clinton “may be necessary.”... Read More: VIN