Does it? I thought the constitution said there’s a right of free travel between states…. Oh, you mean the Texas constitution. Well, the US constitution also has something to say about that; a state can not make a law to take away that right. So yes, illegal.
In subreddit r/whoathatsinteresting
In a post titled:
Texas Republicans have locked Democratic Rep. Nicole Collier inside the state house chamber and refuse to allow her to leave until she signs a 'permission slip'