Prior to his legislative service, Eubanks served on the Paris School Board. In 2010, he was elected in House District 84, defeating Democrat David L. Rush, 3,990 to 3,085. The seat was vacated by the term-limited Democrat John Wells. Switched to House District 74, Eubanks in 2012 defeated another Democrat, Daniel Wall, 7,257 to 2,788. The incumbent Democrat in the district, Butch Wilkins, was transferred to District 59 via redistricting. Eubanks is a member of the Arkansas Legislative Council and the House committees on Agriculture, Forestry and Economic Development, Education, Energy, and Performance Review. He is a member of the conservativeAmerican Legislative Exchange Council. In 2013 Eubanks joined the required majority to override the vetoes of Democratic Governor Mike Beebe to enact legislation to require photo identification for casting a ballot in Arkansas and to ban abortion after twenty weeks of gestation. He had co-sponsored both measures. Eubanks supported related legislation to ban abortion whenever fetal heartbeat is detected, to forbid the inclusion of abortion in the state insurance exchange, and to make the death of a fetus a felony in certain cases. He co-sponsored a spending cap in the state budget, but the measure failed to gain approval by two votes in the House. Eubanks co-sponsored legislation to allow officials of higher education and religious institutionscarry concealed weapons. He voted to prohibit the governor from regulating firearms in an emergency. Eubanks supported legislation to make the office of prosecuting attorney in Arkansas nonpartisan. He supported the bill, signed by Governor Beebe, to permit the sale of up to five hundred gallons per month of unpasteurizedwhole milk directly from the farm to consumers. He did not vote on a failed proposal to prohibit the closure of public schools based on declining enrollments over a two-year period. In 2011, Eubanks supported a dress code for public schools. He backed curriculum standards for biblical instruction in public schools. He voted for the Capital Gains Reduction Act and for a tax reduction on manufacturers' utilities. He voted to forbid driver's license tests in languages other than English, but the measure failed in the House. He voted against cell phone use in school zones. He voted against the 2011 congressional redistricting bill.