FILE - In this June 21, 2017 file photo, former FBI Director Robert Mueller, the special counsel probing Russian interference in the 2016 election, arrives on Capitol Hill for a closed door meeting before the Senate Judiciary Committee in Washington. U.S. special counsel Robert Mueller has yet to release his report about alleged Russian meddling in the 2016 U.S. presidential election but Moscow has already rehearsed its response, dismissing Mueller's investigation as part of the U.S. political infighting.
FILE - In this June 21, 2017 file photo, former FBI Director Robert Mueller, the special counsel probing Russian interference in the 2016 election, arrives on Capitol Hill for a closed door meeting before the Senate Judiciary Committee in Washington. U.S. special counsel Robert Mueller has yet to release his report about alleged Russian meddling in the 2016 U.S. presidential election but Moscow has already rehearsed its response, dismissing Mueller's investigation as part of the U.S. political infighting. Andrew Harnik, File AP Photo
FILE - In this June 21, 2017 file photo, former FBI Director Robert Mueller, the special counsel probing Russian interference in the 2016 election, arrives on Capitol Hill for a closed door meeting before the Senate Judiciary Committee in Washington. U.S. special counsel Robert Mueller has yet to release his report about alleged Russian meddling in the 2016 U.S. presidential election but Moscow has already rehearsed its response, dismissing Mueller's investigation as part of the U.S. political infighting. Andrew Harnik, File AP Photo