Story highlights The notes are from interviews of top Clinton aides, supporters and others

Politically, the release will help keep the issue alive heading into Monday's debate

Washington (CNN) The FBI released Friday nearly 200 pages of notes from its investigation of Hillary Clinton's private email server, just three days before she squares off against Donald Trump in the first presidential debate.

The notes, taken from interviews of top Clinton aides, supporters and others, include details of how a close Clinton confidant explained how the State Department made sure the White House system would not bounce back the emails from the then-secretary of state.

But the documents -- a summary of which had already been released in the overall FBI report -- provide little in the way of major bombshells.

Politically, however, Friday's release helps keep the issue relevant before the debate. The release also comes hours after news that top Clinton aide Cheryl Mills had obtained a limited immunity deal from the FBI in order to cooperate with its investigation.

In one exchange, an unidentified interviewee details alleged efforts by a top State Department official, Patrick Kennedy, to argue during the release of the Clinton emails for classifications that would protect her. But Kennedy, in his own interview, denied the charge.

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