Julie Marie,
Bad press about Nikki aside (and I think it's simply sensationalistic hype tinged toward anti-trans), your point about the validity of Nikki's marriage is really the most important issue there is in this case. First there is a marriage, which on the surface according to Texas law(as I understand it at the time) would be considered invalid due to the GRS not being complete prior to the wedding. Yet, if Nikki produced a birth certificate from California that shows her to be female and that, this is the required identification document to obtain a marriage license in the State of Texas, then, how could the marriage be invalidated? When I was applying for a marriage certificate, I don't recall any physical inspection of my genitalia to prove that I had the required equipment to validate the birth certificate! So, there would appear to be a bit of a loop hole in Texas law (big surprise there, huh). Since it is customary for States to honor other States birth certificates in the course of granting marriage licenses, then this marriage from my simple minded view would have to be determined as valid!
I think this has the potential to be ground breaking law when this is finally decided. Truly, this entire marriage situation, whether it involves trans people or same sex marriages has reached a point that there needs to be National clarity instituted as a remedy to the hodge podge system that is as it is today in variance from one state to another.
Dawn