sentences:  Duncan served in the Texas State Senate from the 28th District, centered about Lubbock, from 1996, when he won a special election, until his resignation in July 2014, when he was named chancellor of the Texas Tech system.He previously served in the Texas House of Representatives from District 84 from his election in 1992 until 1996.On May 19, 2014, the Texas Tech University System Board of Regents named Duncan the sole finalist to succeed former U.S. Representative Kent Hance as the system chancellor.