Former Department of Homeland Security Secretary Jeh Johnson said Wednesday the Democratic National Committee decided it didn’t need the department’s help when it was hacked by the Russians and instead opted to rely on a private cybersecurity firm.

“This was a question I asked repeatedly when I learned of [the hacking]—what are we doing? Are we in there? Are we helping them discover the vulnerabilities, because this was fresh off the OPM experience and there was a point at which DHS cybersecurity experts did get in to OPM and help them discover the bad actors and patch some of the exfiltrations, or at least minimize some of the damage,” Johnson said referencing the hack at the Office of Personnel Management.