Berger Quits as An Adviser To Kerry Ex-Clinton Aide Facing Inquiry Over Papers By Susan Schmidt Washington Post Staff Writer Wednesday, July 21, 2004; Page A01 Clinton administration national security adviser Samuel R. "Sandy" Berger, under criminal investigation for removing copies of highly classified documents from the National Archives, severed his ties to John F. Kerry's campaign yesterday. Berger, who has been the subject of an investigation since October, stepped down as Kerry's informal adviser on foreign policy and national security as the campaign moved quickly to stem the unfolding story's political damage. A government official with knowledge of the...