State Department staffers are not allowed to use private servers for official classified business, Secretary John Kerry John Forbes KerryThe Memo: Warning signs flash for Trump on debates Divided country, divided church TV ads favored Biden 2-1 in past month MORE told the Senate on Tuesday.

“In today’s world, given all that we’ve learned and what we understand about the vulnerability of our system, we don’t do that, no,” Kerry said while testifying in a Senate Foreign Relations Committee hearing.

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The remark, which came in response to a question from Sen. Ron Johnson Ronald (Ron) Harold JohnsonSecond GOP senator to quarantine after exposure to coronavirus GOP-led panel to hear from former official who said Burisma was not a factor in US policy The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump contradicts CDC director on vaccine, masks MORE (R-Wis.), serves as an orchestrated Republican jab at Democratic presidential candidate Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE, whose exclusive use of a private server and email account while secretary of State has roiled GOP critics in Washington.

Republicans have for months hammered Clinton on her email arrangement, which some critics claim should lead to criminal charges for mishandling classified information. More than 1,700 emails from Clinton's machine have been classified at some level upon release.

Clinton’s personal server is currently in the hands of the FBI, which has launched an investigation connected to the matter.

A video clip of Tuesday’s exchange in the Senate was distributed by the Republican National Committee.

The State Department has previously made clear that Clinton’s bespoke setup would not be allowed under current rules.

“We have very specific procedures in place in the department,” Kerry told Johnson on Tuesday. “I brought in an inspector general. I wrote a letter to the inspector general asking him to review our entire process.”

Legislation signed into law since Clinton left office would likely make a similar case illegal. Since the law was not in place at the time, however, Clinton’s email setup was not in and of itself a violation of federal recordkeeping laws.