Hilary Clinton was interviewed by the FBI about her use of a private email server while serving as Secretary of State, her campaign said Saturday. During her tenure as US Secretary of State, from 2009-2013, Clinton is accused of violating security protocol by keeping emails dealing with state business on a private email server, rather than a secure government server. Private servers are far more susceptible to cyber attacks, making this an issue of national security. The Saturday morning interview was voluntary and expected, and is not an indication that Clinton is likely to face prosecution, and there are some indications that the Justice Department's yearlong probe may be drawing close to conclusion. “She is pleased to have had the opportunity to assist the Department of Justice in bringing this review to a conclusion,” Clinton spokesman Nick Merrill said. “Out of respect for the investigative process, she will not comment further on her interview.” The long email saga has haunted Clinton's presidential campaign, though main Democratic primary opponent Bernie Sanders was loath to make it a central issue, famously declaring in debate with Clinton: "I'm sick of hearing about your damn emails". Presumptive Republican nominee Donald Trump, however, has not been similarly reticent in mentioning the email scandal, making it the centerpiece of his continued attacks on former Secretary Clinton's integrity. "Crooked Hilary" is Trump's preferred nickname for Clinton, joining a long list of derogatory epithets stuck to Trump's political opponents. While Democratic party officials do not expect the probe to result in Clinton's prosecution, the scandal has been an unwelcome distraction from her presidential candidacy. The interview came a day after Attorney General Loretta Lynch said that she intended to accept the findings of the investigation, indicating that it may be concluded soon.