And as for why it happened, I'm no expert on the Texas procedures, but what my friends there tell me is that the governor opposed a measure put forward by Democrats in the legislature to expand the number of children that would be covered. And instead directed the money toward a tax cut, a significant part of which went to wealthy interests.
The measure would have expanded the number of children that would be covered but would cause more debt.
( z1 contrast :ARG1 ( z2 expand :ARG0 ( z3 measure ) :ARG1 ( z4 number :quant-of ( z5 child :ARG1-of ( z6 cover ) ) ) ) :ARG2 ( z7 cause :ARG0 z3 :ARG1 ( z8 debt :mod ( z9 more ) ) ) )