# Democrats Reclaim Control Across US-Mexico Border Districts Democratic candidates sweep all ten border districts following significant shifts in midterm voting patterns. - **Source:** [El País English](https://english.elpais.com) - **Published:** 2026-11-08 - **Topic:** [politics](https://brifing.si/c/politics) - **Original article:** - **On Brifing:** https://brifing.si/s/5b752ef2-2ec8-43f6-a316-0535b5d0d449 ## Democratic Electoral Sweep Democratic candidates successfully secured victories in all ten congressional districts spanning the U.S.-Mexico border. This region, which stretches from Tijuana to the Gulf of Mexico, includes two districts in California, two in Arizona, one in New Mexico, and five in Texas. The results mark a decisive reversal of recent political trends. ## Reversing Presidential Trends The midterm results represent a sharp departure from the 2024 presidential election, where Donald Trump achieved historic gains in the region. Trump had previously won majority-Hispanic counties that historically supported Democrats for decades. However, the latest midterm data shows a median swing of 23 percentage points toward Democratic candidates across these districts. ## Texas District Flips Texas’s 15th and 23rd congressional districts officially flipped from Republican to Democratic control during this election cycle. These specific districts were central to the Republican strategy in 2024, but the midterm turnout favored the Democrats. Every border district with at least half the votes counted shows a clear shift toward the party. ## Starr County Transformation Starr County, where 97% of residents are Hispanic, serves as a primary example of this political volatility. After Trump won the county by 16 points in 2024, Democratic Senate candidate James Talarico now holds a 55.8-point lead. This marks a dramatic return to form for a county that previously supported Democrats. ## Rio Grande Valley Dynamics Democratic support in the Rio Grande Valley began eroding in 2020, following years of consistent margins. Barack Obama won the area by 73 points in 2012, but Joe Biden’s lead narrowed to just five points by 2020. Current midterm results show Democrats winning by margins even wider than those seen in 2012. ## California Border Shift Imperial County in California experienced a delayed shift compared to the Texas border regions. Joe Biden won the county by 24 points in 2020, but Donald Trump managed to carry it by less than one percentage point in 2024. The recent midterm results indicate a stabilization and return to previous Democratic voting patterns. ## Comparative Voter Behavior The median swing of 23 percentage points toward Democrats in border districts significantly outpaces the 14.1-point swing observed nationwide. This suggests that the political environment along the border is uniquely reactive to current events. The rapid movement between parties highlights the high level of engagement among voters in these specific regions. ## Future Political Implications The midterm results demonstrate that the Republican gains seen in the 2024 presidential election were not necessarily permanent fixtures. By reclaiming all ten border districts, the Democratic Party has effectively neutralized a key area of Trump’s previous success. Observers should monitor whether these voting patterns persist in future federal and local cycles. ## Sources covering this story - https://english.elpais.com/usa/2026-11-08/how-the-democrats-won-back-the-us-mexico-border.html — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._