Rio Grande Valley Polls Show Trump Support Eroding in Texas 15th District

Hispanic voters in Texas's Rio Grande Valley are drifting away from the Republican Party, according to new polling data released ahead of the November 3 midterms. This shift threatens to unravel the record 55% share of Hispanic votes that Donald Trump secured in the region during the 2024 presidential election. The data suggests a majority of these voters now disapprove of the president and prefer Democratic candidates by a wide margin.

The change in sentiment is visible in local communities where the effects of federal immigration policy are most acute. At the La Lomita Catholic Chapel, located approximately 200 yards from the Rio Grande, Father Roy Snipes preached to about 30 worshippers regarding the actions of Immigration and Customs Enforcement. Snipes, who has served the congregation for nearly 50 years, criticized the detention and deportation of local residents. He stated, "There's no good excuse to detain, incarcerate and deport poor, good folks who are our neighbours."

Federal enforcement in the area has intensified. Data from the Deportation Data Project indicates that Texas accounted for roughly one-third of all ICE arrests nationwide in July 2026, a higher share than any other state. While border crossings have reached their lowest levels in decades, fulfilling a key campaign pledge, the method of enforcement has alienated some supporters.

Javier Villalobos, the Republican mayor of McAllen, acknowledges the difficulty of the upcoming race. He credits the administration with securing the border but notes a specific point of contention among voters. "Most people accept deporting criminals, he said, but deporting productive, law-abiding people is where the problem begins."

The economic impact of the immigration crackdown is another driving factor. Mario Guerrero, a Mexican-American businessman and head of the South Texas Builders Association, voted for Trump in three previous elections but intends to vote Democrat in November. He cited a lack of clarity about the administration's intentions. His experience illustrates the strain on local labor, as an acquaintance's crew of 35 daily workers has shrunk to just four or six.

Republican consultant Mike Madrid observes that Latino voters are more likely than other demographic groups to identify as independents. This flexibility allows them to shift allegiances based on immediate circumstances rather than long-term party loyalty. The polls suggest this flexibility is currently favoring the Democrats.

In the redrawn Texas 15th congressional district, the political landscape has changed dramatically. Republicans redrew the map in 2025 to secure a theoretical 18-point majority. However, current surveys show a Democratic lead of five or six points. The district's Democratic candidate, Bobby Pulido, a Tejano singer and two-time Latin Grammy winner, has focused his campaign on the local economy rather than national party politics. "This isn't New York, this isn't LA," Pulido said.

Cost of living concerns remain a top priority for voters in the region. At a local avocado festival, residents Dave Baldwin and Veronica Salazar blamed the president for rising prices. Baldwin stated, "He is in control of our destiny with all that, and right now he's not doing a very good job."

Republican officials admit the party faces challenges in holding onto these seats. Student volunteer Alexis Uscanga described the midterms as "purely a game of turnout." Tano Tijerina, the Republican candidate in the nearby 28th district, acknowledged that while he credits Trump with "breaking through barriers," the "national political headwinds are real."

If the polling holds, a modest shift toward Democrats could have consequences beyond the 15th district. In Texas, such a move could put a US Senate seat in play, a position Democrats have not held in more than 30 years.