sentences:  He has two children from his first marriage to the former Lynne Stebbins, Lindsey and Matthew Duncan.Duncan, along with colleagues Bob Deuell of Greenville, John Carona of Dallas, Kevin Eltife of Tyler, and Kel Seliger of Amarillo, is considered one of the most liberal of the nineteen (as of 2013) Texas Senate Republicans, according to an analysis by Mark P. Jones of the Political Science Department at Rice University in Houston.Jones also found that these Republicans saw passage of 90 percent of the bills for which they had voted.