Washington (CNN) White House press secretary Sarah Sanders said Tuesday that President Donald Trump "has confidence" in his chief of staff John Kelly.

"The President has confidence in his chief of staff," Sanders said as she faced a barrage of questions from reporters about the White House's and Kelly's handling of allegations of domestic abuse against a senior aide, Rob Porter.

The vote of confidence came hours after FBI Director Chris Wray said Tuesday that the FBI briefed the White House four times on its background investigation into Porter before the abuse allegations surfaced publicly and forced Porter's resignation last week. The White House had previously claimed that it only became aware of the extent of the allegations against Porter -- which his two ex-wives shared with FBI investigators early last year -- last week.

Sanders said Tuesday that the FBI shared its findings with the White House personnel security office, but she could not definitively say whether the office had shared the findings with any West Wing officials.

"I'm not aware of any communication," Sanders said. "I can't say definitively, but I'm not aware of any communication."

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