See here. Great quote from Nate Persily: “‘The question for Justice Kennedy right now is, if what’s happened in Texas is OK, is there really any circumstance under which partisan gerrymandering is unconstitutional?’ he said.” My view: I’ll be shocked if Justice Kennedy votes to strike down the Texas redistricting on partisan gerrymandering grounds (putting aside challenges raised under the Voting Rights Act). Justice Kennedy was certainly aware of what was happening in Texas when he wrote his decision; the Vieth plurality even cites to the lower court opinion in the Texas case.