How a sprawling Texas district transformed from a Democratic stronghold into a Republican bastion

Countries & Cities · Published 15 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: Texas's 13th congressional district spans over 40,000 square miles, making it the second-largest in the state. Once a region where Democrats held local power well into the 1990s, it has undergone a dramatic political shift, now standing as one of the most reliably Republican districts in the entire nation.

The 13th district’s current configuration emerged in 1973, following the merger of the Panhandle-based 18th district and the Texoma-based 13th. Historically, the Panhandle was among the first areas in Texas to deviate from the Solid South voting pattern. As early as the 1940s, voters began splitting their tickets, and a Republican was elected in a 1950 special election. Despite this early trend, Democrats maintained a firm grip on local offices and state legislative seats for decades. Even in 1976, Jimmy Carter secured 33 of the district’s 44 counties, often capturing 60% to 70% of the vote.

The political landscape shifted decisively in 1994 when Mac Thornberry defeated three-term Democrat Bill Sarpalius. Since that transition, Democratic candidates have struggled to remain competitive, failing to exceed the 30 percent threshold in any election since 2000. By the turn of the millennium, elected Democrats had virtually vanished from the district above the county level. Today, Republicans dominate at nearly every level of government, with incumbents frequently running unopposed or facing only minor third-party challengers, often securing over 70% of the vote.

The district's Republican identity is starkly reflected in recent presidential outcomes. In 2012, Barack Obama received just 18.5% of the vote, his lowest percentage in any congressional district nationwide. By 2016, Hillary Clinton’s performance dipped further to 16.9%, while Donald Trump captured 79.9%. Following the 2020 census, the district was heavily redrawn to include parts of Denton, a suburb of the Dallas-Fort Worth metroplex. Despite this change, the district retains a Cook Partisan Voting Index rating of R+24, cementing its status as a stronghold for the Republican Party.

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