SAN ANTONIO — The signs of a political shift in the reliably blue counties that line Texas’s southern border with Mexico had been coming. Local GOP offices were emerging in places like Starr County that had not voted for a Republican for president in a ...

Republicans had a big night in South Texas, flipping predominately Hispanic counties along the US-Mexico border.

Donald J. Trump’s biggest gains were along the Texas border, a Democratic stronghold where most voters are Hispanic. He won 12 of the region’s 14 counties, up from five in 2016.

Republicans had a big night in South Texas, flipping predominately Hispanic counties along the US-Mexico border

The former president captured 55% of Latino voters in the state, according to exit polls. He also won 14 out of the 18 counties within 20 miles of the border, a number that doubled his 2020 performance in the Latino-majority region.