John Cornyn III (born February 2, 1952) is the senior United States Senator for Texas, serving since 2002. He is a member of the Republican Party. He is the current Senate Majority Whip for the 115th Congress. Cornyn was Chairman of the National Republican Senatorial Committee from 2007-2011.
Cornyn was born in Houston, Texas on February 2, 1952. His family moved to Tokyo, Japan. He studied at Trinity University and St. Mary's University School of Law. He received his LL.M. from the University of Virginia School of Law. Cornyn and his wife Sandy have two daughters.