In a reversal, the State Department acknowledged Friday that a Congressional investigation into the attack on U.S. facilities in Benghazi played a role in the agency’s decision to ask Hillary Clinton and three other secretaries of state to turn over copies of all work-related emails they sent or received on private accounts during their tenure. State spokeswoman Marie Harf told reporters that a special House committee’s ongoing probe into the Benghazi incident was one of many factors that led the department to send a request last October that resulted in Clinton sending her former agency 55,000 pages of emails she...