FILE - In this March 29, 2017 file photo, Senate Intelligence Committee Chairman Sen. Richard Burr, R-N.C. speaks to reporters about his panel’s investigation of Russian interference in the 2016 election, on Capitol Hill in Washington. In an exclusive interview with The Associated Press, the North Carolina Republican opened up about the investigation that has now consumed 19 months of his life. (AP Photo/J. Scott Applewhite)
WASHINGTON (AP) — For much of the last two years, Senate Intelligence Committee Chairman Richard Burr has been the Russia investigator who is seen but rarely heard on Capitol Hill.