CIA Director Mike Pompeo has been interviewed as part of special counsel Robert Mueller’s investigation into Russian election interference, NBC News reported.

Former acting Attorney General Sally Yates has also cooperated with the special counsel, the network reported.

President Trump last year fired Yates from her post after she refused to defend his initial travel ban. She has since become a frequent critic of the Trump administration.

Pompeo and Director of National Intelligence Dan Coats, who has also spoken with Mueller’s team, are “peripheral witnesses” to the firing of former FBI Director James Comey, one person familiar with the matter told NBC News. 

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