hispanic_60pct_tx in Texas, drawn against the surrounding county.

Texas's heavily-Hispanic block-groups cover 6.93 million people and a voting-age population of 4.97 million, with Hispanic residents at 81.7% of the total. Black residents make up 5.2% and Asian residents 1.4%, leaving a small non-Hispanic share outside the Hispanic plurality. Age and socioeconomic detail aren't resolvable at block-group level in this rollup, so the demographic read here is composition only.

Webb County is the standout row, swinging 53.2 points right from D+51.0 in 2016 to R+2.2 in 2024. TX-28, which contains Webb and runs along the border, tracks the same arc at a smaller magnitude — D+25.5 to R+10.4, a 35.9-point shift. Texas overall moved just 4.7 points right across the same span, ending at R+13.7. Webb's 2024 turnout of 18.6% sits 54.8 points below the TX-28 figure of 73.4%.

Texas's heavily-Hispanic block-groups swung 17.0 points right between 2020 and 2024, collapsing from D+23.9 to D+6.9 in a single cycle. That break drives the entire 19.2-point rightward arc across the 16-year span — through 2016, the bloc was still moving left, peaking at D+34.4 under Clinton. The 2016→2020 cycle shaved 10.6 points off that peak, and 2020→2024 took another 17.0. Two consecutive rightward cycles erased everything Obama and Clinton had built and then some, leaving the 2024 margin 19.2 points below the 2008 starting point of D+26.1.