The Texas federal judge most likely being referred to is Judge Matthew Kacsmaryk in Amarillo, who sits in a single-judge division and has drawn attention for major nationwide rulings. Another Texas judge often mentioned in the same context is Judge Drew Tipton in Victoria, also in a single-judge division, but the viral “sits alone” framing usually points to Kacsmaryk.

Why people talk about him

Texas has some single-judge divisions, which means one federal judge can be assigned all cases filed there, making that judge unusually influential. That setup has fueled “judge shopping” because litigants can file in a division where they expect a specific judge.

Names to know

  • Matthew Kacsmaryk — Amarillo, Northern District of Texas.
  • Drew Tipton — Victoria, Southern District of Texas.
  • Jeff Brown — Galveston is also noted in discussions of Texas single-judge divisions.

Quick context

The phrase “federal judge in Texas who sits alone” is usually shorthand for a judge in a single-judge division , not literally a judge sitting by himself in court. In recent reporting, that phrase has been tied especially to Kacsmaryk because of the outsized impact of his rulings.

TL;DR

Most likely: Judge Matthew Kacsmaryk. Another possible answer, depending on the post, is Judge Drew Tipton.