FILE PHOTO: Special Counsel Robert Mueller (R) departs after briefing members of the U.S. Senate on his investigation into potential collusion between Russia and the Trump campaign on Capitol Hill in Washington, U.S., June 21, 2017. REUTERS/Joshua Roberts/File Photo
(Reuters) - The following is a timeline of significant developments in the investigation of Special Counsel Robert Mueller into U.S. intelligence agencies' conclusions that Russia interfered in the 2016 presidential election to help get Donald Trump elected:
2017
