John Cornyn (b.1952) was a member of the Texas Supreme Court. He was elected to the court in 1990 and served until 1997. After serving as justice, he became a Republican Senator and member of the Senate Judiciary Committee. 
After law school, Cornyn was a private practice attorney from 1977 to 1985 for the Law Firm of Groce, Locke, and Hebdon. Cornyn became a Texas District Court judge in 1985. Cornyn served in the Texas District Court from 1985 until he was sworn into the Texas Supreme Court in 1991. Once leaving the Texas Supreme Court in 1997, Cornyn ran for Texas Attorney General in 1998. Cornyn was elected by the people of Texas as the top law enforcement official. Cornyn was sworn into office in 1999 until he left his post as Attorney General in 2002 to run for the United States Senate in Texas.