While the FBI made a concerted effort to obtain all the computers that were used as Clinton’s private server and ultimately asked two of Clinton’s lawyers for laptops used to review her email messages, investigators never requested or demanded all equipment her top staffers used for work purposes during her four years at State, a source familiar with the investigation told POLITICO.

“No one was asked for devices by the FBI,” said the source, who requested anonymity.

The decision left the FBI at least partially dependent on the aides’ attorneys’ decisions about which messages were work-related and therefore might have contained classified information the agents were looking for. Those messages were turned over to State in response to its request last year.

GOP lawmakers say the decision not to demand the aides’ electronics, or even to ask for them, raises doubts about how the FBI and prosecutors handled the probe.