Incumbent Sylvia Garcia (D), Jarvis Johnson (D), and Robert Slater (D) are running in the Democratic primary for Texas' 29th Congressional District on March 3, 2026. The filing deadline is December 8, 2025. As of November 2025, Garcia and Johnson led in local media attention.

The primary is taking place in the context of redistricting in Texas ahead of the 2026 elections. The Texas Tribune's Gabby Birenbaum wrote: "For the last two election cycles, Hispanics have made up 63% of the eligible voting population in Garcia’s 29th District; under the new lines, they are just 43%. Meanwhile, the Black eligible voting population...grew from 18% under the previous map to 33% of the district." To learn more about th2026 elece redistricting in Texas, click here.

Garcia was first elected to the U.S. House in 2018. Her campaign website describes her as "the first Latina ever to represent Texas’ 29th Congressional District." Birenbaum said Garcia "plans to campaign vigorously in her new territory to build a winning multiracial coalition, and rejects the notion that Black and brown voters will be factionalized." Garcia says she is "a fighter who refuses to back down...[and] knows that protecting democracy means protecting our rights, our freedoms, and our way of life." Garcia says she has a record of delivering for the district in Congress, including securing more than $1 billion in funding to establish a hydrogen hub in the district and funding improvements to local water mains.

Johnson is a business owner and a former member of the Texas House of Representatives and the Houston City Council. Birenbaum said Johnson "has no policy disagreements with Garcia, but believes he could better address Black voters’ concerns and turn out the district’s voters in a general election, when Democrats will need every vote they can get to win statewide races." Johnson says he is "a builder of futures, a connector of people, and a bold voice for those too often left out of the conversation." Johnson says he has a record of accomplishment, including securing more than $2.1 billion in investments for Texas while in the state legislature.

As of November 2025, The Cook Political Report with Amy Walter, Inside Elections with Nathan Gonzales, and Larry Sabato's Crystal Ball each rated the general election Solid/Safe Democratic.

In the 2024 election, Garcia defeated Alan Garza (R) 65%–35% under the old district lines. An Inside Elections analysis of the August 2025 redistricting in Texas found the "7th and 29th districts both got a little bluer and remain Solid Democratic."