What would you have him do? Throw a hissy fit? Curse the Supreme Court? Replace all state JP’s. Roundup gay Texans?
Calhoun nullified, Wallace and Faubus defied, etc etc. We all know how those turned out.
Announce that the SCOTUS ruling is not legitimate, and that the "great" state of Texas will NOT abide by it, and issue a directive to the counties that they are NOT to issue any licenses.