FILE PHOTO: U.S. Senator Rand Paul (R-KY) is trailed by reporters as he arrives for the weekly Senate Republican caucus luncheon at the U.S. Capitol in Washington, U.S., May 22, 2018. REUTERS/Jonathan Ernst

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.