He was first elected in 1990 to represent Texas' 9th House District. After redistricting, he ran in the newly redrawn Texas' 8th House District and won re-election in 1992, 1994, 1996, 1998, and 2000. He was unopposed in all but two years: 1996 and 1998.
Tenure
In 1995, he co-sponsored the Ratliff–Sadler Act. This act gave some of the Texas Education Agency's former powers to locally-controlled agencies. He was named to the Ten Best List of Texas state legislators by Texas Monthly in 1995, 1997, 1999, and 2001. He was named one of three "Outstanding Legislators" in 1995 and one of "Six Stellar" legislators in 1997 by the Dallas Morning News. He also earned the John B. Connally "Award for Excellence in Education" by the Just For The Kids Foundation.
Committee assignments
Public Education Committee
Judiciary Committee
Pensions and Investments Committee
Health and Human Services Committee
State Revenue and Public School Finance Select Committee
Public School Employee Health Insurance Select Committee
Incumbent State SenatorBill Ratliff of Texas' 1st Senate District decided to resign his seat in the middle of 2003. Ratliff's resignation created a special election in January 2004, in which Sadler finished first with 39 percent of the vote. In the runoff election, the Republican Kevin Eltife, a former Mayor of Tyler, defeated Sadler, 52-48 percent.
Return to private sector
Sadler returned to practicing law in 2003 and specializes in asbestos litigation, product liability, major personal injury litigation and Prompt Pay representing Hospitals and doctors against insurance companies. He has litigated for a multi-billion dollar company in all fifty states. In 2008, he became the executive director for the Wind Coalition, a regional trade group of wind power producers that advocates for increased wind resources in Texas. Sadler has also served on the Governor's Advisory Energy Panel for Oklahoma.
2012 U.S. Senate election
Incumbent Republican U.S. Senator Kay Bailey Hutchison decided to retire effective January 2013. After Democrat Ricardo Sanchez dropped out of contention, Sadler announced his candidacy for the seat, which was held from 1971 to 1993 by the Democrat Lloyd M. Bentsen. On July 31, 2012, Sadler won a runoff election for his party's Senate nomination 63% to 37%. He defeated Grady Yarbrough, a retired educator from San Antonio. Sadler was defeated by Republican candidate Ted Cruz, who received 4,456,599 ballots or 56.6% of the votes cast. Sadler received 3,183,314 ballots or 40.5% of the votes cast.
Personal life
Sadler lives in San Antonio, Texas. He has five children and three step-children.
Awards
Texas Renewable Energy Industries Association Special Recognition "for outstanding efforts to further the wind industry of the State of Texas"
Businessweek's Premier Lawyers of America
Texas Super Lawyer
Texas Federation of Teachers Child Advocate Award
Texas Democratic House Caucus Service Award for Meritorious Service
Texas Women's Political Caucus Good Guy
"Ten Best List" by Texas Monthly
Texas School Public Relations Association Key Communicator
East Texas Chapter of Texas Association of School Honorary Membership