Washington (CNN)Hillary Clinton met with the FBI for three and a half hours Saturday as part of the investigation into her use of a private email server while leading the State Department, her campaign said.
"Secretary Clinton gave a voluntary interview this morning about her email arrangements while she was secretary," Clinton spokesman Nick Merrill said in a statement.
"She is pleased to have had the opportunity to assist the Department of Justice in bringing this review to a conclusion."
Clinton told MSNBC's Chuck Todd Saturday evening that the interview was something "I had been eager to do."
An aide said the interview occurred at FBI headquarters in Washington Saturday morning. The FBI declined to comment.
The meeting signals the investigation is coming to an end, and sources tell CNN the expectation is Clinton will not face charges.
Still, the probe has cast a shadow over Clinton's campaign, and news of FBI agents interviewing the former secretary of state gave Republicans an opportunity to pounce
after Clinton has spent weeks at the top of most polls. It has also put the Justice Department in the position of having a major impact on the 2016 race -- a role made even more awkward this week by an unplanned meeting between former President Bill Clinton and Attorney General Loretta Lynch that raised questions about the impartiality of the probe.
The question now becomes how long it will take for the FBI to conclude its probe.
Within the next two weeks or so, the expectation is there will be an announcement of no charges being brought against Clinton so long as no evidence of wrongdoing emerges from her interview with the FBI, sources familiar with the investigation told CNN. CNN has previously reported no charges were expected to be brought against Clinton because the investigators had not found evidence to warrant charges, according to multiple law enforcement officials. A Democrat close to Clinton said Saturday the campaign believes the FBI will announce its decision before the conventions.
Sources familiar with the investigation had previously told CNN the Justice Department's aim was to wrap up before the Republican and Democratic conventions later this month. The timing is crucial, because if Clinton were to be indicted before the convention, Democrats could perhaps nominate another candidate.
Asked about reports that she is unlikely to face charges, Clinton told Todd, "I am not going to comment on the process. I have no knowledge of any timelines. This is entirely up to the department."
Presumptive Republican nominee Donald Trump said it was "impossible for the FBI not to recommend criminal charges against Hillary Clinton."
"It is impossible for the FBI not to recommend criminal charges against Hillary Clinton. What she did was wrong! What Bill did was stupid!" Trump tweeted, referring to the former president's meeting with Lynch.
After reports surfaced that Clinton was unlikely to be charged, Trump then tweeted, "It was just announced-by sources-that no charges will be brought against Crooked Hillary Clinton. Like I said, the system is totally rigged!"
Asked by CNN's Brianna Keilar in a "State of the Union" interview Saturday about the possibility of the presumptive Democratic nominee being indicted, New Jersey senator -- and potential Clinton running mate -- Cory Booker flatly ruled out the possibility.
"That's just not going to happen," said Booker, who declined to answer whether the former secretary of state should step aside in favor of Vermont Sen. Bernie Sanders or Vice President Joe Biden if she's indicted before the election.
"That's something that, to me, is not even within the realm of possibility," Booker said.
(Courtesy : CNN)