Hillary Clinton continued to insist she never sent nor received classified information on her private email server at the State Department after her long-awaited FBI interview on Saturday.

Clinton met with the FBI for three-and-a-half hours at the agency's headquarters to face questioning over her private email server as secretary of state. The scandal has hung over her campaign for more than a year, furthering public notions Clinton is not trustworthy and plays by her own set of rules.

She told MSNBC's Chuck Todd she was eager to take the meeting and bring the "review" to a conclusion, although this is a criminal investigation.

Todd asked her why she believed she had not violated the law regarding unauthorized removal or retention of classified materials. The Washington Free Beacon reported last year that Clinton signed a non-disclosure agreement laying out criminal penalties for such violations.

"How did your private server, where you kept this classified information, some of which was retroactive, I understand, after your term as secretary of state, how is that not a violation of this code?" Todd asked.

Clinton, who did the interview over the phone, sounded amused as she called the question a "mouthful."

"Let me just repeat what I have repeated for many months now," she said. "I never received or sent any materials that was marked classified."

"Who advised you that it was perfectly legal for you to have a private server and have this information on there as secretary of state? Who gave you that advice?" Todd asked.

"I'm not going to go into any more detail than I already have in public many times, as you certainly know, out of respect for the process that the department is conducting, so I'm not going to comment any further on the review," Clinton said.

She boasted again of releasing 55,000 pages of her emails to the public, once again omitting the 30,000 she already wiped off the server.

Clinton was already slammed in a State Department Inspector General report for her conduct, putting to rest her campaign's repeated notion that what she did was fully aboveboard and in line with department rules.

Despite Donald Trump's greater unpopularity with the public, he is viewed as more trustworthy than Clinton.