The answer depends on which Texas primary you mean and for which race (president, governor, Senate, etc.), and that’s not clear from your question, so I can’t give a single definitive winner without guessing, which would be misleading.

Why it’s hard to give one name

  • Texas holds separate primaries for different offices: presidential, U.S. Senate, U.S. House, governor, and many state races.
  • In 2024, for example, Donald Trump and Joe Biden both easily won their respective presidential primaries in Texas.
  • In 2026, the big statewide primaries (like for governor) have not yet taken place; coverage so far is about who is running and polling, not completed primaries.

What you can do next

If you tell me:

  • the year (e.g., 2024, 2022, 2018), and
  • the race (e.g., “presidential primary,” “Republican governor primary,” “Democratic Senate primary”),

I can narrow it down and tell you exactly who won that specific Texas primary, rather than giving you an oversimplified or wrong name.

TL;DR: There isn’t one single “Texas primary” winner; you’ll need to specify the year and office so I can give you the correct result.

Information gathered from public forums or data available on the internet and portrayed here.