White House press secretary Sarah Huckabee Sanders confirmed to CNN that special counsel Robert Mueller interviewed her last year.

“The President urged me, like he has everyone in the administration, to fully cooperate with the special counsel,” Sanders said in a statement Friday afternoon. “I was happy to voluntarily sit down with them.”

Per CNN, the interview happened in late summer or early fall, near the time former White House chief of staff John Kelly met with Mueller. A source also said that the White House initially denied Mueller’s request to talk to Sanders.

The content of the interview is not yet known.

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