[justlurking]

Texas had historically been gerry-mandered by the Democrats, as late as 2000 (when they still controlled the Legislature). That's why the Congressional delegation was so out of whack.

In some respects, Republicans over-did it when they redistricted before the 2010 census, but Democrats had set the precedent, and they had no right to complain.

[WOSG]

Republicans over-did it”

Actually , NO they didnt ... the number of GOP seats is still less than the GOP vote share, BOTH for the state House and the congressional districts.
The districts are quite reasonable and over-fair to the Dems in many ways.