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. Last Updated: 07/27/2016

Security Chief Resigns

WASHINGTON () -- Craig Livingstone, the White House security chief whose office requested FBI background files on U.S. President Bill Clinton's Republican opponents has announced he is resigning.

Both he and former presidential counsel Bernard Nussbaum testified they were unaware of the file requests.

However, they told a House investigative committee Wednesday they ultimately were responsible for failing to adequately supervise the low-level employees who gathered the files in 1993 and 1994.

The FBI had concluded that the White House had improperly collected 407 FBI files of White House staffers. But latest disclosure brought the number of files involved in the controversy to more than 700.