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Federal Bureau of Investigation (FBI) Director Robert Mueller testifies before the US Senate Judiciary Committee on oversight during a hearing on Capitol Hill in Washington, DC, June 19, 2013. AFP PHOTO / Saul LOEB        (Photo credit should read SAUL LOEB/AFP/Getty Images)
Federal Bureau of Investigation (FBI) Director Robert Mueller testifies before the US Senate Judiciary Committee on oversight during a hearing on Capitol Hill in Washington, DC, June 19, 2013. AFP PHOTO / Saul LOEB        (Photo credit should read SAUL LOEB/AFP/Getty Images)

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    Russia probes could pit Hill against Mueller

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Russia probes could pit Hill against Mueller

Tensions are rising between Congress and special counsel Robert Mueller's team over parallel investigations into Russian election meddling and any possible collusion with Trump associates. CNN's Evan Perez reports.

Russia probes could pit Hill against Mueller

Tensions are rising between Congress and special counsel Robert Mueller's team over parallel investigations into Russian election meddling and any possible collusion with Trump associates. CNN's Evan Perez reports.