Former FBI Director Robert Mueller, special counsel on the Russian investigation, leaves following a meeting with members of the US Senate Judiciary Committee at the US Capitol in Washington, DC on June 21, 2017. / A...

Former FBI Director Robert Mueller, special counsel on the Russian investigation, leaves following a meeting with members of the US Senate Judiciary Committee at the US Capitol in Washington, DC on June 21, 2017. / AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

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