“When we were asked to help the State Department make sure they had everything from other secretaries of state, not just me, I’m the one who said, ‘Okay, great, I will go through them again,’ ” Clinton said Sunday on CBS’s “Face the Nation.” “And we provided all of them.”

But State Department officials provided new information Tuesday that undercuts Clinton’s characterization. They said the request was not simply about general rec­ord-keeping but was prompted entirely by the discovery that Clinton had exclusively used a private e-mail system. They also said they first contacted her in the summer of 2014, at least three months before the agency asked Clinton and three of her predecessors to provide their e-mails.

“In the process of responding to congressional document requests pertaining to Benghazi, State Department officials recognized that it had access to relatively few email records from former Secretary Clinton,” State Department spokesman John Kirby said in a statement e-mailed to The Washington Post. “State Department officials contacted her representatives during the summer of 2014 to learn more about her email use and the status of emails in that account.”