Trump Immigration Policies Shape Voter Priorities in Texas Border Midterms

With five days until the 2026 midterms, immigration enforcement records are functioning as a primary voting motivator in Texas congressional districts that share a physical border with Mexico,...

Voters in Texas congressional districts along the U.S.-Mexico border are citing immigration enforcement as a central factor in their midterm decisions, according to CBS News reporting by Camilo Montoya-Galvez filed ahead of the November 4, 2026 elections.

The border region in question spans several Texas congressional districts, including TX-15, TX-23, TX-28, and TX-34, all of which include counties that share a land boundary with Mexico. Each district has been categorized as competitive or potentially competitive in recent election cycles by the Cook Political Report and other nonpartisan election analysts.

The Trump administration has implemented a series of immigration enforcement actions since January 2025, including expanded use of expedited removal, reinstatement of the Remain in Mexico policy (formally, the Migrant Protection Protocols), and increased U.S. Customs and Border Protection (CBP) operational deployments in the Rio Grande Valley sector. These actions are documented in Federal Register notices and CBP operational announcements published through the Department of Homeland Security.

CBP reported a total of 1.57 million southwest border encounters in fiscal year 2025, according to data published on the CBP official statistics portal. That figure represents a decline from the 2.05 million encounters recorded in fiscal year 2023 under the Biden administration, also per CBP data. The change in encounter volume is a data point both parties have cited in competing political arguments about border policy effectiveness.

In TX-34, which covers much of the Rio Grande Valley, Representative Vicente Gonzalez Jr., a Democrat, won the 2024 race by approximately 7 percentage points, according to certified Texas Secretary of State results. Republicans have targeted the seat in 2026, arguing that stricter enforcement aligns with local voter preferences. Democrats in the district have argued that enforcement measures have disrupted established border communities economically.

In TX-23, the district stretching from San Antonio to El Paso, the seat has changed party hands multiple times in the past decade. It is currently held by a Republican. Voter registration data from the Texas Secretary of State as of October 2026 shows the district's registered voter pool is approximately 63 percent Hispanic or Latino, a demographic that has shown variable partisan alignment in recent cycles according to exit poll data compiled by Edison Research.

Economic effects of immigration enforcement in border communities are documented in part through U.S. Bureau of Economic Analysis regional data, which tracks GDP by metropolitan statistical area. The Laredo and McAllen-Edinburg-Mission MSAs, both along the border, are heavily dependent on cross-border trade. The U.S. Trade Representative's office reported that the Texas-Mexico trade corridor handled approximately $278 billion in two-way trade in 2024.

The midterm elections on November 4, 2026 will determine control of both the House and Senate. The Cook Political Report, as of late October 2026, rates at least two Texas border-area House seats as toss-ups. The specific candidate vote share projections, internal campaign polling, and precinct-level early vote data for border counties are not yet public. Early voting turnout by county will be released by the Texas Secretary of State following the close of early voting on November 1, 2026.

Neither the Republican nor Democratic campaign committees, the National Republican Congressional Committee and the Democratic Congressional Campaign Committee respectively, have disclosed the specific dollar amounts of advertising buys in individual Texas border districts in filings available through the FEC as of October 30, 2026. FEC electioneering communication and independent expenditure reports filed within 24 and 48 hours of the election will provide that data once submitted.

What remains unknown is the precise breakdown of voter motivation by enforcement-specific policy, such as expedited removal versus Remain in Mexico versus local CBP deployment levels. Detailed precinct-level exit polling from the November 4 election would be the public record most likely to answer which specific enforcement actions correlate with voter behavior in individual border districts. For broader midterm context, see Trump Reverses Kansas and Iowa Rally Cancellations Five Days Before Midterms.