So if Texas gets 3 more seats, can they all be gerrymandered or are those growth areas essentially full of illegals and possible Left seats.
Mostly the latter.
That said, we can draw 3 Republican districts and 1 Democratic one.
The lefties get a seat in Dallas. There is really no way to avoid that since they grew like weeds there over the last decade.
Houston is easier. There’s already 3 Democratic seats there, so you throw all the new lefty population in those existing districts and carve out a new Republican district out of pieces of TX-22, TX-25, and TX-7.
A 3rd seat comes in south of Ft. Worth down to Killeen. Republican.
The last seat goes from San Antonio south. The best you can get this is about 53% McCain.
On top of that, you need to give Blake Farenholdt and Quiso Canseco better territory. I can get these guys to about 54% McCain but no better.
Every other Republican gets a seat that McCain got 60% or better in.