In 2010, Ragan was elected, and re-elected for three subsequent terms, as State Representative to the General Assembly for the 33rd district, formerly represented by Jim Hackworth, focusing on education, illegal immigration, and the economy. In 2010, he said, based upon academic studies by Vanderbilt and other sources, there wasn't sufficient evidence that public funding for early childhood education was needed. A year later, he voted to overturn teacher union collective bargaining rights but supported collaborative bargaining. In the 110th Tennessee General Assembly serves as Vice Chair of the House Government Operations Committee, Vice Chair of the Joint Subcommittee on Education, Health and General Welfare, member of the House Health Committee and Subcommittee, Co-Chair of the National Conference of State Legislatures Nuclear Legislative Working Group, Member of the House Health Subcommittee and main Committee, Member of Southern States Energy Board Ragan once wrote a two page letter as a state legislator requesting that the Nuclear Regulatory Commission would site a small modular nuclear fission reactor at the Oak Ridge Federal Reservation. As a member of the Tennessee General Assembly, Ragan has sponsored bills to restrict the issuance of Tennessee marriage licenses from same-sex couples and has advocated for impoverished parents to be referred to the Tennessee Department of Children for a child abuse investigation if their child accumulates lunch debt. Ragan reportedly filed a bill in the Tennessee House of Representatives during 2017 requiring government-issued IDs in Tennessee to prominently feature the words “alien” or “non-U.S. citizen” in capital letters for anyone not a U.S. citizen or lacking permanent residency status. On June 9, 2020, Ragan voted as a member of the House Naming, Designating, & Private Acts Committee against removal of a bust in the Tennessee State Capitol honoring Ku Klux Klan Grand Wizard Nathan Bedford Forrest from the Tennessee State Capitol building Ragan reportedly answered a constitien's email query questioning his support in the Tennessee House of Representatives for the Nathan Bedford Forrest bust with a reply from the opinion column "Remembering Rutherford: Forrest was postwar activist for black civil rights" published in The Daily News Journal that was put together with research material provided by the Memphis chapter president of the Sons of Confederate Veterans who claimed that the "Retired Confederate Gen. Nathan Bedford Forrest was an outspoken advocate for the civil rights of the freedmen in postwar Tennessee", based on a Cumberland Presbyterian religious conversion that Forrest chose late in his life. Forrest did not "retire" from the Confederate States of America army, but was rather a defeated Confederate military commander at the end of the U.S. Civil War.
Personal life
Ragan is a Southern Baptist member of the 5,800 member Grace Baptist Church in Knoxville, Tennessee where he involved in megachurch video ministry. Ragan is married to his wife Elizabeth and he has two children, Amanda and Patrick, and three grandchildren.