FILE PHOTO: Senator Rand Paul (R-KY) walks from Senate Republican weekly policy luncheon on Capitol Hill in Washington, U.S., March 6, 2018. REUTERS/Joshua Roberts/File Photo

MOSCOW (Reuters) - U.S. Republican senator Rand Paul is due to lead a U.S. delegation to Moscow and will meet Russian members of parliament on Aug. 6, Russian agencies cited senior lawmaker Konstantin Kosachov as saying on Thursday.