I hadn't even researched this, but I just noticed how well Texas graduates have done in the Federal Judiciary. Here are rankings on number of graduates serving as judges...
All Federal Judges: #4 ; 48 judges
Appellate Judges: #7; 8 Judges
District Judges: #4; 32 Judges
Magistrate Judges: #1; 7 Judges
The numbers aren't as great if you calculate rankings proportionate to class size, of course, but they are still very good. Comparing to T14 schools for CoA judges compensating for class size differences, Texas still beats out NYU, Columbia, Berkeley, Northwestern and Duke, while approximately tying with Penn and Cornell.
The numbers are fairly similar, though a decent bit better for Texas, in terms of district judges. I'm not reading too much into this, since I'm assuming that self-selection for Biglaw careers by graduates of these other schools could be a factor in, for example, Columbia's relatively poor performance relative to school ranking. Also note that politics-savvy schools like GULC and GW did far better in placing judges relative to their USNWR rankings, indicating that graduates' choice of field is an important qualifier here.
On the other hand, note that Texas completely blasts similarly ranked UCLA and Vandy out of the water in terms of numbers of judges. If this isn't a quantitative indicator that UT is being given a raw deal by the USNWR rankings, I don't know what is...