Texas is a community property state. This business was started after they were married. My reading of Texas divorce law is that she is entitled to half of the assets. I hope he gets raked over the coals by the judge.
You obviously know nothing about Trust Law. Trusts are considered separate entities, and exist specifically for the purpose of shielding assets from those seeking to make a claim on them (most notably, the IRS). Whether they were started before or after the marriage started is irrelevant. Once an item is placed in a Trust, it is no longer an asset of the individual or couple, just as if it were sold. In fact, the way that an item is put in a Trust is a transfer of Title. Trying to blow up trust law is simply not going to happen. Her only hope is that that his lawyers screwed something up in the creation of the Trust (not out of the question), but if they did their job right, she will get nothing.