Steve Toth (R) defeated incumbent Daniel Crenshaw (R), Martin Etwop (R), and Nicholas Plumb (R) in the Republican primary for Texas' 2nd Congressional District on March 3, 2026. Crenshaw and Toth led in fundraising and local media attention

According to the Houston Chronicle's Jeremy Wallace, Crenshaw, who media outlets described as a rising star in the GOP after he was first elected, "has the power of incumbency and is one of the most recognizable members of Congress." Toth was, as of the 2026 primaries, a state representative who the Texas Tribune's Gabby Birenbaum described as "aligned with the rightmost faction of the Texas Legislature...by far the best-known primary opponent Crenshaw has faced in his career." Crenshaw defeated Jameson Ellis (R) 75%–17% and 60%–40% in the 2022 and 2024 primaries.

Toth was elected to the Texas House of Representatives in 2012. He ran unsuccessfully for state Senate in 2014 and U.S. House in 2016 before being re-elected to the state House in 2018. He ran on his record as a state legislator, which he said included "banning both Critical Race Theory and Social Transitioning of Children in Texas schools" and securing "billions in funding for border security initiatives as a member of our Appropriations Committee." He was also, as of the 2026 primaries, a pastor and small business owner. As of November 2025, Toth's campaign website listed "Securing Our Southern Border," "Fighting Liberal Indoctrination," "Our National Security," among his top priorities. Sen. Ted Cruz (R) endorsed Toth on February 24, 2026.