The Winner

If you live in Texas's 20th U.S. House District, you will continue to be represented in Congress by Joaquin Castro (D-TX), who has been declared the winner of the 2026 congressional race, according to the Associated Press. ​

Castro took about 77.6 percent of the vote to about 22.4 percent for his Republican opponent, according to official results from the Texas Secretary of State, Elections Division. That is a margin of about 55 points, or about 106,300 votes.

The winner is based on the Associated Press call, and the vote figures are preliminary: totals may change until the state certifies them. Castro's hometown is San Antonio, Texas, according to his House office website.

The Race

Republican Edgardo Baez reached the general election ballot by winning the March 3 Republican primary with about 9,240 votes. Cook Political Report rated the seat Solid Democratic heading into Election Day.

The district has about 783,300 residents, according to geographic data for the district, with a median household income of about $62,800 and a median age of about 33.

About 25.2 percent of adults hold a bachelor's degree or higher, and the population is about 70.7 percent Hispanic, 37.0 percent white, 6.5 percent Black, and 3.5 percent Asian, with unemployment of about 6.4 percent and about 17.5 percent of residents below the poverty line. The district covers part of Bexar County, according to the U.S. Census Bureau.

What's Next

Castro is set to take office on Jan. 3, 2027. He said he wants Congress to investigate ICE and pursue immigration reform, according to Texas Public Radio, which reported his comments on Nov. 4.

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